TOTAL VOLUME:
$154.4b
24H VOL:
$235,918,089
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,884,820,873
413,109
Markets across
40,428
events
MATCHED EVENTS:
4,364
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 11:52 PM EST
Polymarket
This market refers to the tennis match between Belle Thompson and Dayeon Back in the W35 Sydney, Main Draw, originally scheduled for October 28, 2026 at 7:00PM ET. This market will resolve to 'Belle Thompson' if Belle Thompson advances against Dayeon Back. This market will resolve to 'Dayeon Back' if Dayeon Back advances against Belle Thompson. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 Belle Thompson and Dayeon Back in the W35 Sydney, Main Draw, originally scheduled for October 28, 2026 at 7:00PM ET. This market will resolve to 'Belle Thompson' if Belle Thompson advances against Dayeon Back. This market will resolve to 'Dayeon Back' if Dayeon Back advances against Belle Thompson. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 sources and incentives. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market allows anyone to express their belief about the outcome. Discrepancies can arise from differing levels of expertise among participants or the incorporation of unique, non-public information. It’s common to see prediction markets outperform sportsbook odds in accuracy, especially when there's significant public interest and trading volume.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome of the W35 Sydney tennis match. The price of a share directly corresponds to the implied probability of that outcome occurring. As more people buy shares in a particular outcome, the price increases, reflecting a higher perceived chance of success. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is entirely driven by supply and demand, meaning it’s a direct expression of collective prediction.
This market resolves around Nov 4, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W35 Sydney tennis match between Belle Thompson and Dayeon Back. The platform will verify the winner based on publicly available sources, such as official tournament websites and sports news outlets. Traders will then be able to claim their winnings based on the final result of the match.
Several factors could influence the trading activity and price movement in this market. Any news regarding player form, injuries, or changes in playing conditions could significantly shift expectations. Unexpected upsets in earlier rounds of the tournament involving similar players might also impact the perceived probabilities. Furthermore, major shifts in public opinion or the emergence of new information about the players’ head-to-head record could all contribute to changes in the market price. Monitoring these signals will be key to understanding potential trading opportunities.