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 21, 5:00 AM EST
Polymarket
This market refers to the tennis match between Katja Wiersholm and Mingge Xu in the ITF Women Nottingham, originally scheduled for July 14, 2026 at 5:00AM ET. This market will resolve to 'Katja Wiersholm' if Katja Wiersholm advances against Mingge Xu. This market will resolve to 'Mingge Xu' if Mingge Xu advances against Katja Wiersholm. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Katja Wiersholm and Mingge Xu in the ITF Women Nottingham, originally scheduled for July 14, 2026 at 5:00AM ET. This market will resolve to 'Katja Wiersholm' if Katja Wiersholm advances against Mingge Xu. This market will resolve to 'Mingge Xu' if Mingge Xu advances against Katja Wiersholm. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set odds to balance their book and protect margin, while prediction markets aggregate the beliefs of traders risking real capital. For this match, comparing the implied probability on this market to major sportsbook lines can reveal whether one venue perceives a significant edge. Traders often use such gaps to identify value opportunities.
On Polymarket, this market is priced through an automated market maker that converts trader orders into real-time probabilities. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price you see reflects the cumulative positions of all participants; as more traders buy one outcome, its price rises and the competing outcome falls. This continuous pricing mechanism ensures liquidity and allows you to enter or exit positions at transparent, algorithmically determined rates throughout the trading window.
This market resolves around Jul 21, 2026, once the ITF Nottingham match between the two players concludes and the result is verified against credible public sources. The outcome will be confirmed based on the official match result reported by the tournament organizers or established sports data providers. Until that point, traders can continue to adjust their positions as new information emerges.
Several factors may shift trader sentiment before resolution. Recent player form, head-to-head records, court surface performance, and injury updates can all influence how the market reprices. Tournament draws, seeding changes, and pre-match commentary from analysts may also trigger trading activity. Weather conditions on match day and any last-minute lineup announcements could create volatility. As the event date approaches, watch for accumulating evidence that might alter the perceived probability of either player winning.