TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 14, 9:00 PM EST
Polymarket
This market refers to the tennis match between Kazushi Idogaki and Naoya Honda in the ITF Men Tokyo, originally scheduled for July 7, 2026 at 9:00PM ET. This market will resolve to 'Kazushi Idogaki' if Kazushi Idogaki advances against Naoya Honda. This market will resolve to 'Naoya Honda' if Naoya Honda advances against Kazushi Idogaki. 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 Kazushi Idogaki and Naoya Honda in the ITF Men Tokyo, originally scheduled for July 7, 2026 at 9:00PM ET. This market will resolve to 'Kazushi Idogaki' if Kazushi Idogaki advances against Naoya Honda. This market will resolve to 'Naoya Honda' if Naoya Honda advances against Kazushi Idogaki. 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 like this one are driven by traders risking real capital on their beliefs about the outcome. This market may offer sharper or more efficient pricing in some cases, especially when informed traders spot value that traditional oddsmakers have mispriced. Comparing the two can reveal where consensus differs and highlight potential opportunities.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the collective probability estimate of all active traders at any given moment. As new information emerges or sentiment shifts, traders adjust their positions, causing prices to move in real time. Higher demand for a particular outcome drives its price up, while lower demand pushes it down, creating a continuous price discovery mechanism that incorporates available information about both players' form and matchup dynamics.
This market resolves around Jul 15, 2026, once the Idogaki vs Honda match concludes and the result is verified against credible public sources. The outcome is determined by the official match result recorded by the ITF and confirmed through established tennis reporting channels. No ambiguity exists in tennis match outcomes—one player wins or the match is voided under specific tournament rules. Resolution happens promptly after the event concludes, allowing traders to settle their positions.
Several factors can shift odds before the match takes place. Recent tournament performance, head-to-head records, and ranking changes for either player may prompt traders to reassess probabilities. Injury announcements or withdrawal news would trigger sharp repricing. Court surface conditions, weather forecasts, and draw-related developments can also influence trader positioning. Media coverage highlighting form or momentum, as well as any changes to tournament scheduling, may generate trading activity. Real-time match commentary during play itself will drive final price adjustments as the outcome becomes increasingly certain.