The Chicago Cubs (75-56) enter the three-game series at Chase Field holding a six-game lead over the Cardinals in the NL Central and boasting the majors' third-highest slugging percentage, powered by Pete Crow-Armstrong's recent power surge. The Diamondbacks (69-62) sit two games behind the Padres for the final NL wild-card spot and have posted a solid 38-28 home mark while relying on Ketel Marte and Nolan Arenado for offense. Monday's opener features Kevin Gausman against Merrill Kelly, a matchup that underscores Chicago's edge in run prevention and overall roster depth. Both clubs carry multiple injuries to rotation and bullpen arms, while the D-backs' need for wins to stay in playoff contention adds late-August urgency to the NL West versus NL Central contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedChicago Cubs – Arizona Diamondbacks
Moneyline
$355 Vol.
Will there be a run in the first inning?
$0 Vol.
This market will resolve to "Chicago Cubs" if the Chicago Cubs win the game.
This market will resolve to "Arizona Diamondbacks" if the Arizona Diamondbacks win the game.
If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.
The primary resolution source for this market is the official final 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 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Market Opened: Aug 20, 2026, 9:00 AM ET
Resolution Source
https://www.mlb.com/Resolver
0x65070BE91...Chicago Cubs – Arizona Diamondbacks
Moneyline
$355 Vol.
Will there be a run in the first inning?
$0 Vol.
This market will resolve to "Chicago Cubs" if the Chicago Cubs win the game.
This market will resolve to "Arizona Diamondbacks" if the Arizona Diamondbacks win the game.
If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.
The primary resolution source for this market is the official final 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 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Market Opened: Aug 20, 2026, 9:00 AM ET
Resolution Source
https://www.mlb.com/Resolver
0x65070BE91...The Chicago Cubs (75-56) enter the three-game series at Chase Field holding a six-game lead over the Cardinals in the NL Central and boasting the majors' third-highest slugging percentage, powered by Pete Crow-Armstrong's recent power surge. The Diamondbacks (69-62) sit two games behind the Padres for the final NL wild-card spot and have posted a solid 38-28 home mark while relying on Ketel Marte and Nolan Arenado for offense. Monday's opener features Kevin Gausman against Merrill Kelly, a matchup that underscores Chicago's edge in run prevention and overall roster depth. Both clubs carry multiple injuries to rotation and bullpen arms, while the D-backs' need for wins to stay in playoff contention adds late-August urgency to the NL West versus NL Central contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedBeware of external links.
Beware of external links.
Frequently Asked Questions
Build a combo
Select two options


Beware of external links.
Beware of external links.
Frequently Asked Questions