Build a combo
Skip to main content
Sports·ATP Tour

Quinn Vandecasteele – James Duckworth

6h 27m 7s
Polymarket
Aug 24·6:00 PM
Q. VandecasteeleQ. Vandecasteele
-
J. DuckworthJ. Duckworth
-
$6.19K Vol.Polymarket
NEW

Moneyline

$6.2K Vol.

This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against James Duckworth. This market will resolve to 'James Duckworth' if James Duckworth advances against Quinn Vandecasteele. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to “Vandecasteele” if Quinn Vandecasteele wins set 2. It will resolve to “Duckworth” if James Duckworth wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official ATP match statistics.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to “Vandecasteele” if Quinn Vandecasteele wins the first set. It will resolve to “Duckworth” if James Duckworth wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official ATP match statistics.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Vandecasteele" if Quinn Vandecasteele wins by 2 or more sets than James Duckworth, based on the final completed score. Otherwise, it will resolve to "Duckworth." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between James Duckworth and Quinn Vandecasteele in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Duckworth" if James Duckworth wins by 2 or more sets than Quinn Vandecasteele, based on the final completed score. Otherwise, it will resolve to "Vandecasteele." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market will resolve to "Duckworth" if James Duckworth wins 4.5 or more total games than Quinn Vandecasteele in the upcoming tennis match, scheduled for August 24, 2026 at 2:00PM ET. Otherwise, this market will resolve to "Vandecasteele". Games won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50. If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.James Duckworth enters the Winston-Salem Open first-round matchup against Quinn Vandecasteele as the clear favorite, holding a substantial ranking advantage (around No. 86) and extensive ATP hard-court experience compared to the American’s No. 483 standing. Duckworth arrives off recent Masters-level appearances in Cincinnati and Toronto, where he secured wins over lower-ranked opponents before competitive losses to players like Alex de Minaur. Vandecasteele, a 23-year-old American, advanced through qualifying with straight-sets victories over Li Tu and a three-set win against Pierre-Hugues Herbert, extending a solid run of form on hard courts this summer. The pair met once before, with Duckworth prevailing in straight sets at the 2024 Cleveland Challenger. The hard-court surface and Duckworth’s superior recent opposition level underscore the experience gap in this ATP 250 encounter.

This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET.

This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against James Duckworth.

This market will resolve to 'James Duckworth' if James Duckworth advances against Quinn Vandecasteele.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.

If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.

The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Volume
$6,190
End Date
Aug 31, 2026
Market Opened
Aug 23, 2026, 7:05 PM ET

Resolution Source

https://www.atptour.com/en/scores/current

Resolver

0x65070BE91...
This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against James Duckworth. This market will resolve to 'James Duckworth' if James Duckworth advances against Quinn Vandecasteele. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.

Beware of external links.

Frequently Asked Questions

The “J. Duckworth vs. Q. Vandecasteele” market on Polymarket lets you trade on the outcome of the ATP Tour game between the James Duckworth and the Quinn Vandecasteele, scheduled for August 24, 2026 at 2:00 PM ET. The primary market is the moneyline — which team will win the game — where J. Duckworth is currently priced at 75¢ (75% implied probability) and Q. Vandecasteele at 26¢ (26%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “J. Duckworth vs. Q. Vandecasteele” market has generated $6.2K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “J. Duckworth vs. Q. Vandecasteele,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows DUCKWOR at 75¢ and VANDECA at 26¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “J. Duckworth vs. Q. Vandecasteele” show James Duckworth at 75¢ (75% implied probability) and Quinn Vandecasteele at 26¢ (26%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “J. Duckworth vs. Q. Vandecasteele” market resolves based on the official final score of the ATP Tour game as reported by ATP Tour’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.
Sports·ATP Tour

Quinn Vandecasteele – James Duckworth

6h 27m 7s
Polymarket
Aug 24·6:00 PM
Q. VandecasteeleQ. Vandecasteele
-
J. DuckworthJ. Duckworth
-
$6.19K Vol.Polymarket
NEW

Moneyline

$6.2K Vol.

This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against James Duckworth. This market will resolve to 'James Duckworth' if James Duckworth advances against Quinn Vandecasteele. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to “Vandecasteele” if Quinn Vandecasteele wins set 2. It will resolve to “Duckworth” if James Duckworth wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official ATP match statistics.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to “Vandecasteele” if Quinn Vandecasteele wins the first set. It will resolve to “Duckworth” if James Duckworth wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official ATP match statistics.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Vandecasteele" if Quinn Vandecasteele wins by 2 or more sets than James Duckworth, based on the final completed score. Otherwise, it will resolve to "Duckworth." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between James Duckworth and Quinn Vandecasteele in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Duckworth" if James Duckworth wins by 2 or more sets than Quinn Vandecasteele, based on the final completed score. Otherwise, it will resolve to "Vandecasteele." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official ATP statistics; however, a consensus of credible reporting may also be used.This market will resolve to "Duckworth" if James Duckworth wins 4.5 or more total games than Quinn Vandecasteele in the upcoming tennis match, scheduled for August 24, 2026 at 2:00PM ET. Otherwise, this market will resolve to "Vandecasteele". Games won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50. If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.James Duckworth enters the Winston-Salem Open first-round matchup against Quinn Vandecasteele as the clear favorite, holding a substantial ranking advantage (around No. 86) and extensive ATP hard-court experience compared to the American’s No. 483 standing. Duckworth arrives off recent Masters-level appearances in Cincinnati and Toronto, where he secured wins over lower-ranked opponents before competitive losses to players like Alex de Minaur. Vandecasteele, a 23-year-old American, advanced through qualifying with straight-sets victories over Li Tu and a three-set win against Pierre-Hugues Herbert, extending a solid run of form on hard courts this summer. The pair met once before, with Duckworth prevailing in straight sets at the 2024 Cleveland Challenger. The hard-court surface and Duckworth’s superior recent opposition level underscore the experience gap in this ATP 250 encounter.

This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET.

This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against James Duckworth.

This market will resolve to 'James Duckworth' if James Duckworth advances against Quinn Vandecasteele.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.

If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.

The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Volume
$6,190
End Date
Aug 31, 2026
Market Opened
Aug 23, 2026, 7:05 PM ET

Resolution Source

https://www.atptour.com/en/scores/current

Resolver

0x65070BE91...
This market refers to the tennis match between Quinn Vandecasteele and James Duckworth in the Winston-Salem Open, originally scheduled for August 24, 2026 at 2:00PM ET. This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against James Duckworth. This market will resolve to 'James Duckworth' if James Duckworth advances against Quinn Vandecasteele. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.

Beware of external links.

Frequently Asked Questions

The “J. Duckworth vs. Q. Vandecasteele” market on Polymarket lets you trade on the outcome of the ATP Tour game between the James Duckworth and the Quinn Vandecasteele, scheduled for August 24, 2026 at 2:00 PM ET. The primary market is the moneyline — which team will win the game — where J. Duckworth is currently priced at 75¢ (75% implied probability) and Q. Vandecasteele at 26¢ (26%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “J. Duckworth vs. Q. Vandecasteele” market has generated $6.2K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “J. Duckworth vs. Q. Vandecasteele,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows DUCKWOR at 75¢ and VANDECA at 26¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “J. Duckworth vs. Q. Vandecasteele” show James Duckworth at 75¢ (75% implied probability) and Quinn Vandecasteele at 26¢ (26%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “J. Duckworth vs. Q. Vandecasteele” market resolves based on the official final score of the ATP Tour game as reported by ATP Tour’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.