TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 21, 3:52 AM EST
Polymarket
This market refers to the tennis match between Toshiki Karigyo and Hiromasa Koyama in the M15 Tanagura, Main Draw, originally scheduled for October 20, 2026 at 9:00PM ET. This market will resolve to 'Toshiki Karigyo' if Toshiki Karigyo advances against Hiromasa Koyama. This market will resolve to 'Hiromasa Koyama' if Hiromasa Koyama advances against Toshiki Karigyo. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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 Toshiki Karigyo and Hiromasa Koyama in the M15 Tanagura, Main Draw, originally scheduled for October 20, 2026 at 9:00PM ET. This market will resolve to 'Toshiki Karigyo' if Toshiki Karigyo advances against Hiromasa Koyama. This market will resolve to 'Hiromasa Koyama' if Hiromasa Koyama advances against Toshiki Karigyo. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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 a wisdom-of-the-crowd perspective, potentially differing from sportsbook odds which can be influenced by house biases or initial public perception. Sportsbooks may set initial lines to attract action on both sides, whereas this market allows traders to freely express their beliefs. It’s common to see discrepancies, especially before significant information emerges or as the event draws closer. Analyzing these differences can reveal where the crowd believes there’s value, or where sportsbooks might be mispricing the probability of a particular outcome. This comparison can be a useful tool for informed decision-making.
On Polymarket, this market is priced through a continuous trading mechanism where users buy and sell shares representing their belief in the outcome. The price of these shares directly reflects the implied probability of the event occurring. As more traders participate, the price adjusts to incorporate new information and changing sentiment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market's price is determined solely by supply and demand; if more people believe Karigyo will win, the price of shares representing that outcome will increase, and vice versa. This dynamic pricing ensures the market reflects the collective intelligence of its participants.
This market resolves around Oct 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 M15 Tanagura: Toshiki Karigyo vs Hiromasa Koyama fight. The platform will rely on established fight records and official announcements to determine the winner. Traders will then be able to claim their winnings based on the final result. It’s important to note that the resolution process is independent and relies on publicly available information to ensure a fair and transparent outcome.
Several factors could influence the price of shares in this market leading up to Oct 28, 2026. News regarding fighter injuries, changes in training regimes, or even pre-fight press conference statements could all shift trader sentiment. Unexpected announcements about fighter weight or health status would likely have a significant impact. Public opinion, as reflected in polls or expert analysis, can also play a role, though the market’s price is ultimately determined by trading activity on Polymarket. Any new information that alters the perceived probability of either fighter winning has the potential to move the market.