TOTAL VOLUME:
$134.3b
24H VOL:
$121,875,814
24H TRANSACTIONS:
2,403,290,006
OPEN INTEREST:
$1,437,844,306
405,535
Markets across
30,523
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 21, 10:00 AM EST
Polymarket
This market refers to the tennis match between Lea Ma and Haruka Kaji in the ITF Women Granby, originally scheduled for July 14, 2026 at 10:00AM ET. This market will resolve to 'Lea Ma' if Lea Ma advances against Haruka Kaji. This market will resolve to 'Haruka Kaji' if Haruka Kaji advances against Lea Ma. 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 Lea Ma and Haruka Kaji in the ITF Women Granby, originally scheduled for July 14, 2026 at 10:00AM ET. This market will resolve to 'Lea Ma' if Lea Ma advances against Haruka Kaji. This market will resolve to 'Haruka Kaji' if Haruka Kaji advances against Lea Ma. 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 pricing mechanisms. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets like Polymarket are driven by trader supply and demand. For this market, prediction market prices may react faster to breaking news or shift more sharply based on trader conviction. Comparing the two can reveal where smart money is positioning and whether public sportsbook lines lag behind informed market consensus on the outcome.
On Polymarket, this market is priced through an automated market maker that converts trader positions 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 bets placed on each outcome, with larger trades moving the odds more dramatically than smaller ones. As traders buy or sell shares, the price adjusts continuously. This mechanism ensures transparent, friction-free pricing and allows you to enter or exit your position at any time before the market closes.
This market resolves around Jul 21, 2026, once the ITF Granby match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result—either a win for Ma or a win for Kaji. No ambiguity exists in tennis match outcomes, making this a straightforward binary event. Traders should monitor the tournament schedule and any last-minute changes to ensure they understand the exact timing of resolution.
Several factors could shift odds before the match begins. Recent player form, head-to-head records, court surface preference, and injury reports are key catalysts. Tournament seeding and draw position may also influence trader positioning. Weather conditions on match day, last-minute lineup changes, or unexpected player statements can trigger sharp moves. Additionally, if one player advances or exits the tournament unexpectedly, or if betting syndicates position large blocks of capital, the market price could swing significantly. Monitor tennis news and social media for early signals.