TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 2, 11:25 AM EST
Kalshi
This event group covers a Wimbledon 2026 WTA Women's Doubles match scheduled for July 2, 2026 between the team of Alicia Dudeney and Mingge Xu against Su-Wei Hsieh and Xinyu Wang. Three prediction markets across Polymarket and Kalshi reference this same match but with materially different resolution criteria and edge-case handling.
This market refers to the doubles tennis match between Dudeney/Xu and Hsieh/Wang in the Wimbledon WTA, originally scheduled for July 2, 2026 at 6:00AM ET. This market will resolve to 'Dudeney/Xu' if the team of Dudeney/Xu advances against Hsieh/Wang. This market will resolve to 'Hsieh/Wang' if the team of Hsieh/Wang advances against Dudeney/Xu. 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.
Resolution requires that a ball be played in the match, establishing that competition has commenced. The winning team is determined by standard professional tennis match rules. 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 procedures. Postponements or delays do not close the market; it remains open and resolves after the rescheduled match concludes, provided this occurs within two weeks of the original date.
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. Each platform attracts different trader demographics, liquidity pools, and fee structures, which can cause temporary price gaps. Polymarket and Kalshi also operate under different regulatory frameworks and user bases, meaning information diffuses at different speeds across each venue. Additionally, order-book depth and trading volume vary between the two, so large trades can move prices differently. These gaps typically narrow as arbitrageurs exploit the spread, but they create real-time trading opportunities for those monitoring both platforms simultaneously.
Player form, recent tournament results, and head-to-head records will influence trader sentiment leading up to the match. Injury announcements or withdrawal news involving any of the four players could trigger sharp repricing. Court conditions, draw positioning, and momentum from earlier rounds at Wimbledon may also shift expectations. Media coverage, expert commentary, and betting action on external sportsbooks can cascade into this market as traders react to new information. Weather delays or scheduling changes could affect player fatigue and preparation, creating additional volatility.