TOTAL VOLUME:
$97.5b
24H VOL:
$264,423,826
24H TRANSACTIONS:
951,878,243
OPEN INTEREST:
$2,171,275,957
831,219
Markets across
15,133
events
MATCHED EVENTS:
973
PLATFORM COVERAGE:
5
Polymarket:
45%
VS.
Kalshi:
55%
Closed: Jul 23, 9:00 AM EST
Polymarket
This market refers to the tennis match between Stephanie Judith Visscher and Maria Martinez Vaquero in the ITF Women Vitoria-Gasteiz, originally scheduled for July 16, 2026 at 9:00AM ET. This market will resolve to 'Stephanie Judith Visscher' if Stephanie Judith Visscher advances against Maria Martinez Vaquero. This market will resolve to 'Maria Martinez Vaquero' if Maria Martinez Vaquero advances against Stephanie Judith Visscher. 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 Stephanie Judith Visscher and Maria Martinez Vaquero in the ITF Women Vitoria-Gasteiz, originally scheduled for July 16, 2026 at 9:00AM ET. This market will resolve to 'Stephanie Judith Visscher' if Stephanie Judith Visscher advances against Maria Martinez Vaquero. This market will resolve to 'Maria Martinez Vaquero' if Maria Martinez Vaquero advances against Stephanie Judith Visscher. 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 operate under different incentive structures. Sportsbooks set lines to balance action and protect their margin, while prediction markets reflect the aggregated beliefs of traders risking real capital. For this market, comparing the implied probability here to traditional sportsbook lines can reveal whether traders are pricing the outcome differently than bookmakers. Such gaps sometimes signal value, though both venues incorporate similar public information and expert analysis.
On Polymarket, this market is priced through an automated market maker mechanism where 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 current odds reflect the ratio of capital allocated to each side, and as traders adjust their positions, the price updates in real time. Higher trading volume typically narrows spreads and improves price accuracy, allowing you to enter and exit positions with minimal slippage.
This market resolves around Jul 23, 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 Vitoria-Gasteiz event. Once the match is complete and the winner is confirmed through reliable sources, the market settles accordingly, and traders' positions are finalized based on their predictions.
Several factors could shift trader sentiment before resolution. Recent form, head-to-head records, and injury updates on either player may prompt repricing. Court conditions, draw announcements, or qualifying results can also influence expectations. News coverage and expert commentary often trigger volume spikes as new information reaches the market. Additionally, betting patterns from other venues and social media discussion may signal shifting confidence, causing traders to adjust their positions and move the odds.
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