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: Jul 6, 10:45 AM EST
Polymarket
This market refers to the tennis match between Alina Granwehr and Sapfo Sakellaridi in the ITF Women Aix-Les-Bains, originally scheduled for June 29, 2026 at 10:45AM ET. This market will resolve to 'Alina Granwehr' if Alina Granwehr advances against Sapfo Sakellaridi. This market will resolve to 'Sapfo Sakellaridi' if Sapfo Sakellaridi advances against Alina Granwehr. 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 Alina Granwehr and Sapfo Sakellaridi in the ITF Women Aix-Les-Bains, originally scheduled for June 29, 2026 at 10:45AM ET. This market will resolve to 'Alina Granwehr' if Alina Granwehr advances against Sapfo Sakellaridi. This market will resolve to 'Sapfo Sakellaridi' if Sapfo Sakellaridi advances against Alina Granwehr. 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 protect their margin, while prediction markets like this one are driven purely by trader belief and real-money risk. Sportsbooks may move faster on breaking news or injury reports, whereas prediction markets can lag if retail traders haven't yet priced in public information. Comparing the two reveals arbitrage opportunities and shows where the crowd's conviction differs from professional oddsmakers' assessments of this match.
On Polymarket, this market is priced through an automated market maker that adjusts odds continuously as traders buy and sell shares representing each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the cumulative belief of all participants; as more capital flows toward one player, her implied win probability rises and the opposing outcome falls. Traders profit by identifying mispriced outcomes and trading against the crowd. Liquidity and trading volume directly influence how tight the spreads are and how quickly prices respond to new information about the match.
This market resolves around Jul 6, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome is determined by the official match result—which player wins the ITF Aix-Les-Bains event. Traders holding shares in the winning outcome receive their payout, while losing positions expire worthless. Resolution typically occurs within hours of the final point, allowing the platform to confirm the result and distribute winnings promptly to all participants.
Key catalysts include recent form and head-to-head records, player injury reports or withdrawal announcements, and court conditions at the venue. Betting line movement from major sportsbooks can also shift trader sentiment, as can social media buzz or expert commentary about either player's fitness. Weather delays or scheduling changes may trigger repricing as the match date approaches. Close matches between ranked opponents often see late volatility as new information emerges; watch for training updates, coaching changes, or unexpected upsets in related tournaments that could influence confidence in either competitor.