Tennis · Sports

National Bank Open: Marta Kostyuk vs Madison Keys

Trade on Polymarket

National Bank Open: Marta Kostyuk vs Madison Keys Set 1 O/U 8.5

63%

$5,009 Vol.

56%

National Bank Open: Marta Kostyuk vs Madison Keys Set 1 Winner

54%

National Bank Open: Marta Kostyuk vs Madison Keys Match O/U 21.5

$69 Vol.

54%

Completed Match

50%

National Bank Open: Marta Kostyuk vs Madison Keys Set 2 O/U 8.5

50%

National Bank Open: Marta Kostyuk vs Madison Keys Set 1 O/U 9.5

50%

National Bank Open: Marta Kostyuk vs Madison Keys Set 2 O/U 9.5

50%

National Bank Open: Marta Kostyuk vs Madison Keys Set 2 O/U 10.5

50%

National Bank Open: Marta Kostyuk vs Madison Keys Match O/U 22.5

$5 Vol.

47%

National Bank Open: Marta Kostyuk vs Madison Keys Match O/U 23.5

43%

National Bank Open: Marta Kostyuk vs Madison Keys Total Sets: O/U 2.5

$95 Vol.

41%

National Bank Open: Marta Kostyuk vs Madison Keys Set 1 O/U 10.5

36%

National Bank Open: Marta Kostyuk vs Madison Keys Set Handicap +/-1.5

34%

National Bank Open: Marta Kostyuk vs Madison Keys Set 2 Winner

30%

National Bank Open: Marta Kostyuk vs Madison Keys Set Handicap +/-1.5

27%

Rules

This market refers to the tennis match between Marta Kostyuk and Madison Keys in the National Bank Open, originally scheduled for August 5, 2026 at 11:00AM 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 delayed beyond 7 days without commencement,…

Holders