TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
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2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 16, 9:13 AM EST
Polymarket
This market refers to the tennis match between Maria Oliver sanchez and Sandeepti Singh Rao in the W15 Monastir, Main Draw, originally scheduled for September 16, 2026 at 5:30AM ET. This market will resolve to 'Maria Oliver sanchez' if Maria Oliver sanchez advances against Sandeepti Singh Rao. This market will resolve to 'Sandeepti Singh Rao' if Sandeepti Singh Rao advances against Maria Oliver sanchez. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 2026, 11:59 PM ET (14 days after the scheduled start), 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 Maria Oliver sanchez and Sandeepti Singh Rao in the W15 Monastir, Main Draw, originally scheduled for September 16, 2026 at 5:30AM ET. This market will resolve to 'Maria Oliver sanchez' if Maria Oliver sanchez advances against Sandeepti Singh Rao. This market will resolve to 'Sandeepti Singh Rao' if Sandeepti Singh Rao advances against Maria Oliver sanchez. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 2026, 11:59 PM ET (14 days after the scheduled start), 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 often reflect the wisdom of the crowd, potentially differing from traditional sportsbook odds due to varying information and incentives. Sportsbooks set lines based on their own models and profit margins, while this market aggregates the beliefs of many individual traders. If a significant discrepancy exists between this market and sportsbook odds, it could indicate that traders possess information not yet fully incorporated by sportsbooks, or vice versa. It’s important to remember that both represent probabilities, but are derived through different mechanisms.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the probability of that outcome occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders who believe an outcome is likely, the higher the share price will climb, and conversely, the price will fall if confidence wanes. This dynamic pricing reflects the collective intelligence of the crowd and adjusts in real-time based on new information and trading activity.
This market resolves around Sep 23, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W15 Monastir tennis match between Maria Oliver Sanchez and Sandeepti Singh Rao. The platform will verify the winner of the match against publicly available sources to determine the winning outcome. Traders holding shares in the winning outcome will be entitled to a payout, while those holding shares in the losing outcome will forfeit their investment.
Several signals could influence this market before resolution. Any news regarding player form, injuries, or changes in playing conditions could shift trader sentiment. Unexpected upsets in other matches within the tournament could also impact confidence in the players involved. Furthermore, significant betting activity or large trades on Polymarket could indicate informed opinions and potentially trigger price movements. Ultimately, any information that alters the perceived probability of either player winning will likely cause fluctuations in the market.