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405,232

Markets across

30,526

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MATCHED EVENTS:

2,693

PLATFORM COVERAGE:

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VS.

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US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans
polymarket
limitless
opinion
kalshi

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans

Volume:
$3,910,396

Madison Keys

 - Kalshi

Madison Keys - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 2, 2026

Closed: Sep 1, 1:25 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Madison Keys

View
100%
Yes 100¢No 0¢
1¢
N/A
$2,293,883
N/A
N/A
$1,391,846
Settled
Yes
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 2 O/U 9.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$586
N/A
N/A
N/A
Settled
Yes
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Match O/U 21.5

View
100%
49%
Yes 100¢No 0¢
0.1¢
N/A
$198
N/A
N/A
N/A
Settled
Yes
limitless

Madison Keys vs Alina Korneeva

View
100%
Yes 100¢No 0¢
99.8¢
N/A
$4
N/A
N/A
N/A
Settled
No
kalshi

Alina Korneeva

View
0%
Yes 0¢No 100¢
1¢
N/A
$1,498,179
N/A
N/A
$698,985
Settled
No
opinion

Madison Keys vs A. Korneeva

View
N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans

View
0%
34%
Yes 0¢No 100¢
—
N/A
$117,269
N/A
N/A
N/A
Settled
Yes
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 1 Winner

View
0%
Yes 0¢No 100¢
—
N/A
$255
N/A
N/A
N/A
Settled
Yes
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 2 Winner

View
0%
76%
Yes 0¢No 100¢
—
N/A
$23
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

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

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Total Sets: O/U 2.5

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

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 1 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

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 2 O/U 8.5

View
100%
Yes 100¢No 0¢
20¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set Handicap +/-1.5

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

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Game Spread +/-1.5

View
100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 1 O/U 9.5

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

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Match O/U 22.5

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

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 2 O/U 10.5

View
100%
Yes 100¢No 0¢
20¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Match O/U 23.5

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

US Open, Qualification WTA: Mariam Bolkvadze vs Anouk Koevermans Set 1 O/U 10.5

View
0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 20

Intro

This market tracks the likelihood of over 9.5 games being played in the second set of the US Open Qualification WTA match between Mariam Bolkvadze and Anouk Koevermans. Currently, the aggregated consensus across Polymarket, Limitless, Opinion, and Kalshi gives a 100.0% probability to “Bolkvadze vs. Koevermans: Set 2 Games O/U 9.5”. Resolution will be based on official WTA Tour statistics and match results. Keep an eye on the match itself, originally scheduled for August 27, 2026, as the outcome will be determined by the games played in the second set and finalized by the resolution_date_estimate of September 3, 2026.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All platforms use the same core resolution logic based on official WTA Tour results, with consistent handling of match completions, retirements, defaults, and cancellations.Primary resolution logic: Official WTA Tour statistics and match results

Core resolution logic:

  • Match must be completed through normal play for definitive resolution unless outcome is already unconditionally determined
  • Walkovers, retirements, defaults, and cancellations resolve to 50-50 unless outcome is already determined
  • Tiebreaks count as one game toward totals
  • Markets remain open during weather or tournament-imposed delays

Edge cases & clarifications:

  • Walkover: Resolves to 50-50 across all markets
  • Retirement/Default: Resolves to the advancing player unless outcome was already determined
  • Match Not Completed by Deadline: Resolves to 50-50 unless outcome was already unconditionally determined
Timing: Resolution occurs when official WTA Tour statistics are published, typically within 2 hours after match conclusionOur PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

This market refers to the tennis match between Mariam Bolkvadze and Anouk Koevermans in the US Open, Qualification WTA, originally scheduled for August 27, 2026 at 11:00AM ET. This market will resolve to 'Mariam Bolkvadze' if Mariam Bolkvadze advances against Anouk Koevermans. This market will resolve to 'Anouk Koevermans' if Anouk Koevermans advances against Mariam Bolkvadze. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 10, 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 WTA Tour. A consensus of credible reporting may also be used.

Kalshi

The event determines the winner of the professional tennis match between Madison Keys and Alina Korneeva in the 2026 US Open Women Singles Round of 128, contingent upon at least one ball being played. If Keys wins the match after play commences, her market resolves to Yes; if Korneeva wins under the same conditions, her market resolves to Yes. Should the match fail to occur before any ball is played—due to injury, walkover, forfeiture, or other cancellation—the market will resolve at a fair price. If the match is postponed or delayed, it remains open until the rescheduled match concludes, with a closure deadline of two weeks after the new match date. The market is independent of the governing league, and all trademarks remain property of their respective owners.

Limitless

This market refers to the tennis match between Madison Keys and Alina Korneeva in the WTA US Open, originally scheduled for August 30, 2026 at 15:00 UTC. This market will resolve to 'Madison Keys' if Madison Keys advances against Alina Korneeva. This market will resolve to 'Alina Korneeva' if Alina Korneeva advances against Madison Keys. 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.

Opinion

In the upcoming WTA singles match scheduled for 2026-09-01 15:30 UTC: if Madison Keys wins the match, this market resolves to "Madison Keys"; if A. Korneeva wins, it resolves to "A. Korneeva". The winner is the first player to claim the required number of sets under the match's official best-of format. If the match begins but is not completed, a retirement or default counts the opposing player as the winner. If a walkover is declared before the first point is played, the match is outright canceled, or it is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. Suspensions caused by weather, fading light, or other tournament-imposed delays do not close this market — it stays open until the match is officially completed, provided it concludes within the 7-day window mentioned above. Resolution Source: The official WTA Tour scoring page. Note: This market will resolve strictly based on the first officially published result from the designated source. Any subsequent revisions will not affect this resolution.

Frequently asked questions

The dashboard for the Bolkvadze vs Koevermans match market aggregates real-time data from multiple platforms, showing the total volume of $3,910,396 and 24-hour volume of $3,785,226. It provides a consensus view of market sentiment across venues, letting users see how traders price the chances of each outcome as the match approaches. This cross-platform tracking helps you spot trends and compare expectations, whether you're monitoring Polymarket or Kalshi.

On Polymarket and Kalshi, prices can vary because of differences in user participation, regional access, and market design. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. For example, one platform might attract more tennis enthusiasts who interpret recent practice sessions differently, while the other could reflect broader public sentiment. These distinct participant pools often lead to divergent probability assessments, especially when new information emerges about player health or conditions. Monitoring both platforms shows how localized insights shape odds.