TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 15, 10:00 AM EST
Polymarket
This market refers to the tennis match between Lais Mika Shibata and Maria Luisa Oliveira in the ITF Women Rio Claro, originally scheduled for July 8, 2026 at 10:00AM ET. This market will resolve to 'Lais Mika Shibata' if Lais Mika Shibata advances against Maria Luisa Oliveira. This market will resolve to 'Maria Luisa Oliveira' if Maria Luisa Oliveira advances against Lais Mika Shibata. 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 Lais Mika Shibata and Maria Luisa Oliveira in the ITF Women Rio Claro, originally scheduled for July 8, 2026 at 10:00AM ET. This market will resolve to 'Lais Mika Shibata' if Lais Mika Shibata advances against Maria Luisa Oliveira. This market will resolve to 'Maria Luisa Oliveira' if Maria Luisa Oliveira advances against Lais Mika Shibata. 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 manage risk, while prediction markets aggregate the collective beliefs of traders who profit or lose based on accuracy. This market may show different implied probabilities than traditional sports betting sites, offering an alternative gauge of where informed traders believe the match outcome lies. Comparing the two can reveal gaps in consensus.
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. The price of each outcome reflects the cumulative trades of all participants, with each transaction moving the odds based on supply and demand. As more traders back one player, that outcome's price rises and the implied probability increases. This continuous pricing mechanism ensures the market stays responsive to new information and participant conviction throughout the trading window.
This market resolves around Jul 15, 2026, once the match concludes and the result is verifiable from credible public sources. The outcome will be confirmed based on the official match result reported by the ITF or other authoritative tennis reporting bodies. Traders holding shares in the winning outcome will receive their payout, while incorrect positions expire worthless. Resolution timing depends on when the match is played and results are officially published.
Key catalysts include recent performance data, head-to-head history, player injuries or withdrawals, and court conditions at the venue. Ranking changes, tournament draws, and pre-match commentary from analysts can shift trader expectations. Weather forecasts closer to match day may influence play style predictions. Any official announcements about scheduling, player fitness, or surface conditions could trigger significant price movement as traders reassess probabilities and adjust their positions accordingly.