TOTAL VOLUME:
$154.4b
24H VOL:
$230,589,906
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,885,293,300
410,482
Markets across
40,213
events
MATCHED EVENTS:
4,340
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 18, 5:51 AM EST
Polymarket
This market refers to the tennis match between Hiroki Iwakiri and KAISEI UKAWA in the M15 Tanagura, Qualifying, originally scheduled for October 17, 2026 at 11:00PM ET. This market will resolve to 'Hiroki Iwakiri' if Hiroki Iwakiri advances against KAISEI UKAWA. This market will resolve to 'KAISEI UKAWA' if KAISEI UKAWA advances against Hiroki Iwakiri. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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 Hiroki Iwakiri and KAISEI UKAWA in the M15 Tanagura, Qualifying, originally scheduled for October 17, 2026 at 11:00PM ET. This market will resolve to 'Hiroki Iwakiri' if Hiroki Iwakiri advances against KAISEI UKAWA. This market will resolve to 'KAISEI UKAWA' if KAISEI UKAWA advances against Hiroki Iwakiri. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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 exchange 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. As more traders participate and new information becomes available, the price adjusts to reflect the collective assessment. This creates a dynamic and real-time probability estimate for the Iwakiri vs Ukawa match, driven entirely by trader activity.
This market resolves around Oct 25, 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 M15 Tanagura: Hiroki Iwakiri vs KAISEI UKAWA match. The platform will look to established sports news sources and official records to determine the winner, and the shares will be settled accordingly. Traders holding shares in the winning outcome will receive a payout, while those holding shares in the losing outcome will not.
Several factors could influence the price of shares in this market. Any news regarding the condition of either Hiroki Iwakiri or KAISEI UKAWA, such as injuries or changes in training regimens, could significantly shift the odds. Pre-match analysis from respected boxing commentators or analysts could also impact trader sentiment. Unexpected announcements about the fight’s venue or rules could also play a role. Ultimately, any information that alters the perceived probability of either fighter winning will likely cause movement in this market.