TOTAL VOLUME:
$154.6b
24H VOL:
$333,432,169
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,971,286,090
419,492
Markets across
40,634
events
MATCHED EVENTS:
4,654
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 18, 2:23 AM EST
Polymarket
This market refers to the tennis match between Shion Yamada and Haruto Koyanagi in the M15 Tanagura, Qualifying, originally scheduled for October 17, 2026 at 9:00PM ET. This market will resolve to 'Shion Yamada' if Shion Yamada advances against Haruto Koyanagi. This market will resolve to 'Haruto Koyanagi' if Haruto Koyanagi advances against Shion Yamada. 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 Shion Yamada and Haruto Koyanagi in the M15 Tanagura, Qualifying, originally scheduled for October 17, 2026 at 9:00PM ET. This market will resolve to 'Shion Yamada' if Shion Yamada advances against Haruto Koyanagi. This market will resolve to 'Haruto Koyanagi' if Haruto Koyanagi advances against Shion Yamada. 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 auction mechanism, where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. As more people buy shares in a particular outcome, its price increases, and vice versa. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price reflects the aggregated sentiment of all participants, and can fluctuate rapidly based on new information or changes in perceived probabilities. This dynamic pricing allows for a real-time assessment of expectations for the Yamada vs Koyanagi match.
This market resolves around Oct 25, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the M15 Tanagura match between Shion Yamada and Haruto Koyanagi. The platform will rely on established sources for confirming the winner, ensuring a transparent and accurate settlement process. The resolution process is designed to be objective, relying on publicly available information to determine the final outcome of this market.
Several factors could influence trading activity and shift the odds in this market. Any news regarding the physical condition of either Shion Yamada or Haruto Koyanagi, such as injuries or illness, would likely have a significant impact. Updates on their recent performance, training regimens, or strategic approaches could also move the market. Unexpected announcements about changes to the match schedule or venue could also create volatility. Public sentiment, as reflected in social media or expert analysis, may also contribute to shifts in the implied probabilities for this market.