TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 22, 1:46 PM EST
Polymarket
This market refers to the tennis match between Marjorie Souza and Sabrina Dias in the W15 Campina Grande, Main Draw, originally scheduled for October 22, 2026 at 8:30AM ET. This market will resolve to 'Marjorie Souza' if Marjorie Souza advances against Sabrina Dias. This market will resolve to 'Sabrina Dias' if Sabrina Dias advances against Marjorie Souza. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 5, 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 Marjorie Souza and Sabrina Dias in the W15 Campina Grande, Main Draw, originally scheduled for October 22, 2026 at 8:30AM ET. This market will resolve to 'Marjorie Souza' if Marjorie Souza advances against Sabrina Dias. This market will resolve to 'Sabrina Dias' if Sabrina Dias advances against Marjorie Souza. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 5, 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. Sportsbooks set lines based on their own analysis and aim to balance action on both sides, while this market allows anyone to express their belief about the outcome. If a significant discrepancy exists between prediction market probabilities and sportsbook odds, it may indicate that the market has identified information not yet fully incorporated by sportsbooks, or vice versa. It’s a useful comparison point for anyone analyzing the event.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in each outcome. The price of a share directly reflects the implied probability of that outcome occurring. As more traders participate, the price adjusts to reflect the collective assessment of the event's likelihood. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is driven entirely by supply and demand among traders on the platform, and is not influenced by external factors or a central authority setting the odds.
This market resolves around Oct 29, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the W15 Campina Grande match between Marjorie Souza and Sabrina Dias. The platform will rely on publicly available and widely accepted sources to determine the winner, ensuring a transparent and verifiable outcome. Traders will then be able to claim their winnings based on the final result.
Several factors could influence the price of this market before resolution. Any news regarding the players’ form, injuries, or changes in their coaching staff could shift trader sentiment. Unexpected results in other matches involving these players, or broader shifts in the competitive landscape, could also have an impact. Additionally, large trades on Polymarket by informed traders could cause significant price movements, reflecting new information or a change in overall market perception. Monitoring these signals is key to understanding potential shifts in the market.