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Cincinnati Open: Katerina Siniakova vs Madison Keys
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys

Volume:
$218,361

Cincinnati Open: Katerina Siniakova vs Madison Keys Set Handicap +/-1.5

 - Polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set Handicap +/-1.5 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 18, 2026

Closed: Aug 18, 12:58 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set Handicap +/-1.5

View
100%
49%
Yes 100¢No 0¢
0.1¢
N/A
$1,770
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$325
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys

View
0%
26%
Yes 0¢No 100¢
—
N/A
$210,877
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Match O/U 21.5

View
0%
46%
Yes 0¢No 100¢
—
N/A
$4,554
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 1 Winner

View
0%
31%
Yes 0¢No 100¢
—
N/A
$539
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Total Sets: O/U 2.5

View
0%
35%
Yes 0¢No 100¢
—
N/A
$158
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 1 O/U 8.5

View
0%
65%
Yes 0¢No 100¢
—
N/A
$57
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 1 O/U 9.5

View
0%
45%
Yes 0¢No 100¢
—
N/A
$52
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 2 Winner

View
0%
Yes 0¢No 100¢
—
N/A
$22
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Match O/U 23.5

View
0%
38%
Yes 0¢No 100¢
—
N/A
$7
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 2 O/U 8.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Match O/U 22.5

View
0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 2 O/U 9.5

View
0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 2 O/U 10.5

View
0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Cincinnati Open: Katerina Siniakova vs Madison Keys Set 1 O/U 10.5

View
0%
24%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 15

Description

This market refers to the tennis match between Katerina Siniakova and Madison Keys in the Cincinnati Open, originally scheduled for August 18, 2026 at 10:00AM ET. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Madison Keys. This market will resolve to 'Madison Keys' if Madison Keys advances against Katerina Siniakova. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 WTA Tour. A consensus of credible reporting may also be used.

Polymarket

This market refers to the tennis match between Katerina Siniakova and Madison Keys in the Cincinnati Open, originally scheduled for August 18, 2026 at 10:00AM ET. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Madison Keys. This market will resolve to 'Madison Keys' if Madison Keys advances against Katerina Siniakova. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 WTA Tour. A consensus of credible reporting may also be used.

Frequently asked questions

Prediction market odds in this market often reflect a different outlook than traditional sportsbook lines. While sportsbooks incorporate expert analysis and adjusted probabilities, prediction markets capture crowd-sourced sentiment and can shift rapidly with new information or betting patterns. Traders should compare both to identify potential value or divergence in expectations.

This market resolves around Aug 25, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is based on the official match conclusion, and the platform will update the market accordingly once the data is widely confirmed.