TOTAL VOLUME:

$134.2b

24H VOL:

$143,246,370

24H TRANSACTIONS:

2,403,290,006

OPEN INTEREST:

$1,452,035,386

405,032

Markets across

30,543

events

MATCHED EVENTS:

2,690

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy
polymarket
kalshi

Who will win Starodubtseva/Stearns vs Haverlag/Udvardy?

Volume:
$3,670

Yuliia Starodubtseva / Peyton Stearns

 - Kalshi

Yuliia Starodubtseva / Peyton Stearns - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 2, 2026

Closed: Jul 2, 10:25 AM 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

Yuliia Starodubtseva / Peyton Stearns

View
100%
Yes 100¢No 0¢
100¢
N/A
$1,830
N/A
N/A
$1,827
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$510
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Match O/U 21.5

View
100%
Yes 100¢No 0¢
0.5¢
N/A
$34
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Set 2 O/U 8.5

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$34
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Set 2 O/U 9.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$34
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Set 1 O/U 8.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$34
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Match O/U 22.5

View
100%
Yes 100¢No 0¢
0.5¢
N/A
$34
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Match O/U 23.5

View
100%
Yes 100¢No 0¢
0.5¢
N/A
$34
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Total Sets: O/U 2.5

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$34
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Set 1 O/U 9.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$20
N/A
N/A
N/A
Settled
Yes
kalshi

Isabelle Haverlag / Panna Udvardy

View
0%
Yes 0¢No 100¢
100¢
N/A
$1,038
N/A
N/A
$1,035
Settled
No
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Set Handicap +/-1.5

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

Completed Match

View
100%
Yes 100¢No 0¢
0.5¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Set 2 Winner

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

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy Set 1 Winner

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

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy 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

Wimbledon WTA (Doubles): Starodubtseva/Stearns vs Haverlag/Udvardy 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: 17

Description

This event group covers a Wimbledon WTA doubles match between Starodubtseva/Stearns and Haverlag/Udvardy, scheduled for July 2, 2026. Multiple prediction markets track either the match winner or whether the match completes under normal play rules.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Polymarket and Kalshi define different resolution scopes. Polymarket's winner market and completion market contradict each other on retirements and defaults. Kalshi's market requires only that a ball be played and a winner determined, making it more permissive than Polymarket's completion standard.Hero tip: Do not assume all three markets will resolve the same way. If the match ends in a retirement or default after play begins, Polymarket's winner market will pay the advancing team, but Polymarket's completion market will pay No, and Kalshi will pay Yes. If a walkover occurs before any ball is played, Polymarket's winner market pays 50-50, Polymarket's completion market pays No, and Kalshi likely pays No. Monitor match status closely and reconcile your position across platforms.

Critical divergence points:

  • Polymarket (Winner): Resolves to the advancing team if match completes or if one team advances via retirement/default/disqualification. Resolves 50-50 on walkover, cancellation, tie, or delay beyond 7 days. Key Quote: 'If the match begins but is not completed, and one team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.'
  • Polymarket (Completion): Resolves Yes only if all games and sets are played to completion through normal play. Resolves No on any forfeit, walkover, retirement, cancellation, tie, or delay beyond 7 days. Key Quote: 'If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve to No.'
  • Kalshi: Resolves Yes if either team wins after a ball has been played. Implicitly resolves No if no ball is played (walkover). Does not address 7-day delay rule or tie scenarios. Key Quote: 'If Isabelle Haverlag / Panna Udvardy wins...after a ball has been played, then the market resolves to Yes.'
Our 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 doubles tennis match between Starodubtseva/Stearns and Haverlag/Udvardy in the Wimbledon WTA, originally scheduled for July 2, 2026 at 6:00AM ET. This market will resolve to 'Starodubtseva/Stearns' if the team of Starodubtseva/Stearns advances against Haverlag/Udvardy. This market will resolve to 'Haverlag/Udvardy' if the team of Haverlag/Udvardy advances against Starodubtseva/Stearns. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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

Resolution depends on which team wins the match after play has begun. The market resolves Yes for whichever team achieves victory once a ball has been played in the match. If the match fails to occur before play begins due to injury, walkover, forfeiture, or other cancellation, the market resolves to a fair price per standard rules. Should the match be postponed or delayed, the market remains open and closes following the rescheduled match completion, provided this occurs within two weeks.

Frequently asked questions

Prediction market odds and traditional sportsbook odds serve different purposes. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets aggregate decentralized trader beliefs without a built-in house edge. This market's odds reflect what thousands of independent traders believe will happen, often incorporating faster-moving information than sportsbooks update. However, sportsbooks may offer tighter spreads and more refined statistical models. Comparing this market's implied probability to major sportsbook lines can reveal value opportunities for informed bettors.

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. Platform differences in user demographics, fee structures, and liquidity pools naturally create price variation. Polymarket attracts global traders with lower barriers to entry, while Kalshi operates under US regulatory frameworks with different user incentives. Order book depth, recent trading volume, and the timing of large trades can shift odds independently across venues. Additionally, each platform's interface and notification systems may cause traders to react to information at different speeds, creating temporary arbitrage windows that sophisticated traders exploit.

Player injuries, recent form trends, and head-to-head records are primary catalysts for price movement. News of lineup changes, coaching adjustments, or surface-specific performance data can shift trader expectations significantly. Court conditions at Wimbledon, weather forecasts, and momentum from earlier rounds may also influence odds as the match approaches. Real-time match updates—such as set scores and momentum swings—will drive volatile repricing in the final hours before play. Monitoring player social media and official tournament communications can help traders anticipate market moves.