TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 6, 4:28 AM EST
Polymarket
This market refers to the tennis match between Kotaro Matsumura and Yu Tanaka in the M25 Sapporo, Qualifying, originally scheduled for September 6, 2026 at 12:00AM ET. This market will resolve to 'Kotaro Matsumura' if Kotaro Matsumura advances against Yu Tanaka. This market will resolve to 'Yu Tanaka' if Yu Tanaka advances against Kotaro Matsumura. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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 Kotaro Matsumura and Yu Tanaka in the M25 Sapporo, Qualifying, originally scheduled for September 6, 2026 at 12:00AM ET. This market will resolve to 'Kotaro Matsumura' if Kotaro Matsumura advances against Yu Tanaka. This market will resolve to 'Yu Tanaka' if Yu Tanaka advances against Kotaro Matsumura. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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.
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 reflects the probability of that outcome occurring, as determined by supply and demand. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders buy shares in a particular outcome, the price increases, and vice versa. This dynamic pricing ensures that the market reflects the collective intelligence of all participants, creating a real-time forecast of the event's likelihood.
This market resolves around Sep 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the M25 Sapporo match between Kotaro Matsumura and Yu Tanaka. The platform will verify the result against publicly available sources to determine the winning outcome. Traders will then be able to claim their winnings or adjust their positions based on the final result of the match.
Several factors could influence trading activity in this market. Any news regarding the players' form, potential injuries, or changes in their training regimens could shift the odds. Unexpected announcements about match conditions or referee assignments might also impact trading. Furthermore, significant betting activity from informed traders or large volume purchases could signal a change in market sentiment, driving price fluctuations until the match concludes and the outcome is determined.