TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 12:50 AM EST
Polymarket
This market refers to the tennis match between Hikaru Shiraishi and Sho Katayama in the M15 Yanagawa City, Main Draw, originally scheduled for October 27, 2026 at 9:00PM ET. This market will resolve to 'Hikaru Shiraishi' if Hikaru Shiraishi advances against Sho Katayama. This market will resolve to 'Sho Katayama' if Sho Katayama advances against Hikaru Shiraishi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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 Hikaru Shiraishi and Sho Katayama in the M15 Yanagawa City, Main Draw, originally scheduled for October 27, 2026 at 9:00PM ET. This market will resolve to 'Hikaru Shiraishi' if Hikaru Shiraishi advances against Sho Katayama. This market will resolve to 'Sho Katayama' if Sho Katayama advances against Hikaru Shiraishi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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.
Comparing prediction market odds to sportsbook odds reveals how the wisdom of the crowd stacks up against professional oddsmakers. Often, prediction markets can offer different perspectives, especially when incorporating information not immediately reflected in traditional betting lines. Discrepancies can arise from differing opinions on player form, potential upsets, or even external factors influencing the match. Analyzing these differences can be valuable for informed decision-making, though it's important to remember both represent probabilities based on available information.
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 implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate, the price adjusts to reflect the collective assessment of the event. This dynamic pricing ensures the market remains responsive to new information and changing sentiment regarding the Shiraishi vs Katayama match.
This market resolves around Nov 4, 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 Yanagawa City match between Hikaru Shiraishi and Sho Katayama. The platform will rely on publicly available and authoritative sources to determine the winner, ensuring a transparent and verifiable resolution process for all participants in this market.
Several signals or events could significantly impact this market. Any news regarding player injuries, changes in coaching strategies, or even weather conditions affecting the match could shift trader sentiment. Unexpected results in prior matches for either Shiraishi or Katayama would also likely cause movement. Public statements from analysts or experts offering strong opinions on the likely outcome could also influence trading activity, leading to changes in the implied probabilities reflected in the market.