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Sports·ITF

Rafael Giotis – Sammy Guinau

5h 14m 23s
Polymarket
Aug 24·2:00 PM
R. GiotisR. Giotis
-
S. GuinauS. Guinau
-
$0.00 Vol.Polymarket
NEW

Moneyline

$0 Vol.

This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Sammy Guinau. This market will resolve to 'Sammy Guinau' if Sammy Guinau advances against Rafael Giotis. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM 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 Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to “Giotis” if Rafael Giotis wins the first set. It will resolve to “Guinau” if Sammy Guinau 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 ITF match statistics.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to “Giotis” if Rafael Giotis wins set 2. It will resolve to “Guinau” if Sammy Guinau 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 ITF match statistics.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to "Giotis" if Rafael Giotis wins by 2 or more sets than Sammy Guinau, based on the final completed score. Otherwise, it will resolve to "Guinau." 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sammy Guinau and Rafael Giotis in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to "Guinau" if Sammy Guinau wins by 2 or more sets than Rafael Giotis, based on the final completed score. Otherwise, it will resolve to "Giotis." 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.Rafael Giotis, the 25-year-old German ranked near 1360, enters with far greater professional experience at the ITF M25 level than 18-year-old Dutch qualifier Sammy Guinau, whose 2026 record sits at 3-4 on clay with most activity in lower-tier qualifiers. Giotis has posted recent clay results including qualifier wins in M25 Metzingen and M15 Lambermont alongside losses to players like Jack Loge, reflecting inconsistent but established form on the surface. Guinau remains early in his transition from juniors, with limited main-draw exposure. The clay courts in the Netherlands favor the more seasoned baseline player, though youth and local conditions could support competitive sets if Guinau advances through qualifying. Trader consensus reflects this experience gap in implied probabilities.

This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM ET.

This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Sammy Guinau.

This market will resolve to 'Sammy Guinau' if Sammy Guinau advances against Rafael Giotis.

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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Volume
$0
End Date
Aug 31, 2026
Market Opened
Aug 23, 2026, 8:14 PM ET

Resolution Source

https://www.itftennis.com/en/tournament-calendar/

Resolver

0x65070BE91...
This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Sammy Guinau. This market will resolve to 'Sammy Guinau' if Sammy Guinau advances against Rafael Giotis. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.

Beware of external links.

Frequently Asked Questions

The “Guinau vs. Giotis” market on Polymarket lets you trade on the outcome of the ITF game between the Sammy Guinau and the Rafael Giotis, scheduled for August 24, 2026 at 10:00 AM ET. The primary market is the moneyline — which team will win the game — where Giotis is currently priced at 50¢ (50% implied probability) and Guinau at 50¢ (50%). 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 “Guinau vs. Giotis” market has generated $NaN 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 “Guinau vs. Giotis,” 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 GUINAU at 50¢ and GIOTIS at 50¢. 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 “Guinau vs. Giotis” show Rafael Giotis at 50¢ (50% implied probability) and Sammy Guinau at 50¢ (50%). 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 “Guinau vs. Giotis” market resolves based on the official final score of the ITF game as reported by ITF’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·ITF

Rafael Giotis – Sammy Guinau

5h 14m 23s
Polymarket
Aug 24·2:00 PM
R. GiotisR. Giotis
-
S. GuinauS. Guinau
-
$0.00 Vol.Polymarket
NEW

Moneyline

$0 Vol.

This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Sammy Guinau. This market will resolve to 'Sammy Guinau' if Sammy Guinau advances against Rafael Giotis. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM 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 Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to “Giotis” if Rafael Giotis wins the first set. It will resolve to “Guinau” if Sammy Guinau 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 ITF match statistics.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to “Giotis” if Rafael Giotis wins set 2. It will resolve to “Guinau” if Sammy Guinau 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 ITF match statistics.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to "Giotis" if Rafael Giotis wins by 2 or more sets than Sammy Guinau, based on the final completed score. Otherwise, it will resolve to "Guinau." 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sammy Guinau and Rafael Giotis in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to "Guinau" if Sammy Guinau wins by 2 or more sets than Rafael Giotis, based on the final completed score. Otherwise, it will resolve to "Giotis." 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, originally scheduled for August 24, 2026 at 10:00AM 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 ITF results.Rafael Giotis, the 25-year-old German ranked near 1360, enters with far greater professional experience at the ITF M25 level than 18-year-old Dutch qualifier Sammy Guinau, whose 2026 record sits at 3-4 on clay with most activity in lower-tier qualifiers. Giotis has posted recent clay results including qualifier wins in M25 Metzingen and M15 Lambermont alongside losses to players like Jack Loge, reflecting inconsistent but established form on the surface. Guinau remains early in his transition from juniors, with limited main-draw exposure. The clay courts in the Netherlands favor the more seasoned baseline player, though youth and local conditions could support competitive sets if Guinau advances through qualifying. Trader consensus reflects this experience gap in implied probabilities.

This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM ET.

This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Sammy Guinau.

This market will resolve to 'Sammy Guinau' if Sammy Guinau advances against Rafael Giotis.

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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Volume
$0
End Date
Aug 31, 2026
Market Opened
Aug 23, 2026, 8:14 PM ET

Resolution Source

https://www.itftennis.com/en/tournament-calendar/

Resolver

0x65070BE91...
This market refers to the tennis match between Rafael Giotis and Sammy Guinau in the ITF M25 Oldenzaal Men, Qualifying, originally scheduled for August 24, 2026 at 10:00AM ET. This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Sammy Guinau. This market will resolve to 'Sammy Guinau' if Sammy Guinau advances against Rafael Giotis. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.

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Frequently Asked Questions

The “Guinau vs. Giotis” market on Polymarket lets you trade on the outcome of the ITF game between the Sammy Guinau and the Rafael Giotis, scheduled for August 24, 2026 at 10:00 AM ET. The primary market is the moneyline — which team will win the game — where Giotis is currently priced at 50¢ (50% implied probability) and Guinau at 50¢ (50%). 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 “Guinau vs. Giotis” market has generated $NaN 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 “Guinau vs. Giotis,” 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 GUINAU at 50¢ and GIOTIS at 50¢. 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 “Guinau vs. Giotis” show Rafael Giotis at 50¢ (50% implied probability) and Sammy Guinau at 50¢ (50%). 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 “Guinau vs. Giotis” market resolves based on the official final score of the ITF game as reported by ITF’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.

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