TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 27, 9:00 PM EST
Polymarket
This market refers to the tennis match between Taisei Ichikawa and Jumpei Yamasaki in the ITF Men Bali, originally scheduled for July 20, 2026 at 9:00PM ET. This market will resolve to 'Taisei Ichikawa' if Taisei Ichikawa advances against Jumpei Yamasaki. This market will resolve to 'Jumpei Yamasaki' if Jumpei Yamasaki advances against Taisei Ichikawa. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 Taisei Ichikawa and Jumpei Yamasaki in the ITF Men Bali, originally scheduled for July 20, 2026 at 9:00PM ET. This market will resolve to 'Taisei Ichikawa' if Taisei Ichikawa advances against Jumpei Yamasaki. This market will resolve to 'Jumpei Yamasaki' if Jumpei Yamasaki advances against Taisei Ichikawa. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets aggregate the collective beliefs of traders who have real money at stake. For this market, comparing the implied probability here to major sportsbook lines can reveal whether traders are pricing the outcome differently than traditional oddsmakers, potentially signaling where smart money sees value.
On Polymarket, this market is priced through an automated market maker that adjusts odds based on trader activity and order flow. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price reflects the collective confidence of all participants trading shares, with buyers and sellers continuously adjusting their positions. As the event date approaches, price discovery accelerates, allowing the market to incorporate breaking news, injury reports, or form changes that might influence the tennis match outcome.
This market resolves around Jul 28, 2026, once the Ichikawa vs Yamasaki match concludes and the result is verified against credible public sources. The outcome is determined by the official match result, with winning shares paying out based on who prevails in the competition. Until that point, traders can buy and sell shares as odds fluctuate with new developments and market sentiment.
Several factors could shift trader positioning before the match. Player injury announcements, recent tournament performance, head-to-head records, and court surface conditions all influence confidence in either competitor. Media coverage, betting syndicates entering the market, or unexpected withdrawals can trigger sharp price moves. Weather conditions on match day and late-breaking form updates may also prompt traders to reassess their positions, creating volatility in the final hours before play begins.