TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 16, 10:20 AM EST
Kalshi
Harriet Dart and Katie Boulter play a professional tennis match at the 2026 WTA Nottingham tournament during the Round of 32 stage on June 15. The winner moves forward in the tournament.
Resolution requires that a ball be played in the match, confirming the match has officially begun. If the match does not occur before play starts due to injury, walkover, forfeiture, or other cancellation, the market resolves to a fair price. If the match is postponed or delayed, the market remains open and closes after the rescheduled match concludes, provided this occurs within two weeks.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set odds to balance liability and lock in profit margins, while prediction markets are driven by trader demand and belief. This market aggregates the collective judgment of traders betting real money on the outcome, which can sometimes offer sharper or more contrarian lines than conventional bookmakers. Comparing the two can reveal where professional and retail sentiment align or diverge on this matchup.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares representing yes or no outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current odds reflect the balance of buy and sell orders at any moment, with the price converging toward fair value as more traders participate. Liquidity and trading volume influence how quickly prices adjust to new information. Traders can enter limit or market orders to express their view, and the market price updates continuously until resolution.
This market resolves around Jun 15, 2026, once the match concludes and the result is verified against credible public sources. The outcome is determined by which player wins the Round of 32 contest. Traders holding shares in the winning outcome receive their payout, while losing positions expire worthless. The resolution process is automated once the event is confirmed, ensuring all positions settle fairly and transparently based on the official match result.
Several factors may shift odds before Jun 15, 2026. Recent tournament performance, injury reports, head-to-head records, and court surface suitability can all influence trader conviction. Media coverage of either player's form, training updates, or fitness concerns may trigger repricing. Betting patterns from professional or sharp traders can also signal new information. Weather conditions, draw positioning, and momentum from earlier rounds may emerge as relevant catalysts. Real-time updates during the tournament will likely drive the most significant moves as the match date approaches.