TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 24, 4:00 AM EST
Polymarket
This market refers to the tennis match between Mariia Masiianskaia and Nancy Lee in the ITF Women Kursumlijska Banja, originally scheduled for June 17, 2026 at 4:00AM ET. This market will resolve to 'Mariia Masiianskaia' if Mariia Masiianskaia advances against Nancy Lee. This market will resolve to 'Nancy Lee' if Nancy Lee advances against Mariia Masiianskaia. 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 Mariia Masiianskaia and Nancy Lee in the ITF Women Kursumlijska Banja, originally scheduled for June 17, 2026 at 4:00AM ET. This market will resolve to 'Mariia Masiianskaia' if Mariia Masiianskaia advances against Nancy Lee. This market will resolve to 'Nancy Lee' if Nancy Lee advances against Mariia Masiianskaia. 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 sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven purely by trader belief and capital allocation. Prediction markets can sometimes offer sharper, more efficient pricing because traders have direct financial exposure and no house edge to maintain. Comparing this market's odds to major sportsbooks can reveal where the two communities disagree on the likely outcome.
On Polymarket, traders set the odds by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each share represents a claim on one potential result, and the price of each share reflects the probability traders assign to it at any moment. When more capital flows into one outcome, its price rises and the competing outcome's price falls, maintaining a zero-sum balance. This continuous repricing mechanism ensures the market stays responsive to new information and trader conviction.
This market resolves around Jun 24, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result will reflect which player wins the match at the ITF Kursumlijska Banja tournament. Until that date, traders can continue to buy and sell shares as new information emerges—such as player form, injury updates, or head-to-head records. Once the match concludes and the winner is established, the market will settle and shares will pay out according to the final result.
Several factors could shift trader conviction before the match takes place. Recent tournament performance, injury announcements, or changes in player ranking or form could trigger significant price swings. Head-to-head history and surface preference also matter in tennis prediction. News about court conditions, weather forecasts, or last-minute lineup changes may prompt traders to reassess their positions. Additionally, if either player competes in a warm-up event beforehand, the outcome could influence how this market reprices leading up to the final match.