TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 20, 11:18 PM EST
Polymarket
This market refers to the tennis match between Ichina Miyashita and Sera Nishimoto in the W50 Nanao, Qualifying, originally scheduled for September 20, 2026 at 10:00PM ET. This market will resolve to 'Ichina Miyashita' if Ichina Miyashita advances against Sera Nishimoto. This market will resolve to 'Sera Nishimoto' if Sera Nishimoto advances against Ichina Miyashita. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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 Ichina Miyashita and Sera Nishimoto in the W50 Nanao, Qualifying, originally scheduled for September 20, 2026 at 10:00PM ET. This market will resolve to 'Ichina Miyashita' if Ichina Miyashita advances against Sera Nishimoto. This market will resolve to 'Sera Nishimoto' if Sera Nishimoto advances against Ichina Miyashita. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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 of the Miyashita vs Nishimoto match. The price of these shares directly reflects the implied probability of that outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the price adjusts to reflect the collective assessment of the event’s likelihood. The current price indicates what traders are willing to pay for a share representing the outcome.
This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W50 Nanao match between Ichina Miyashita and Sera Nishimoto. The platform will verify the result against established sources to determine the winning outcome. Traders holding shares in the winning outcome will be paid out according to the final market price at resolution.
Several factors could influence the price of this market before Sep 28, 2026. Any news regarding player injuries, changes in playing conditions, or updated rankings for Ichina Miyashita or Sera Nishimoto could shift trader sentiment. Unexpected announcements about the match schedule or venue could also have an impact. Furthermore, significant betting activity or large trades on Polymarket itself could cause price fluctuations as traders react to new information or attempt to capitalize on perceived advantages.