TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 15, 3:00 PM EST
Polymarket
This market refers to the tennis match between Karl Kazuma Lee and Stefan Cooper in the ITF Men Rancho Santa Fe, originally scheduled for July 8, 2026 at 3:00PM ET. This market will resolve to 'Karl Kazuma Lee' if Karl Kazuma Lee advances against Stefan Cooper. This market will resolve to 'Stefan Cooper' if Stefan Cooper advances against Karl Kazuma Lee. 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 Karl Kazuma Lee and Stefan Cooper in the ITF Men Rancho Santa Fe, originally scheduled for July 8, 2026 at 3:00PM ET. This market will resolve to 'Karl Kazuma Lee' if Karl Kazuma Lee advances against Stefan Cooper. This market will resolve to 'Stefan Cooper' if Stefan Cooper advances against Karl Kazuma Lee. 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 liability and manage risk, while prediction markets aggregate the beliefs of traders who profit or lose based on accuracy. This market may show higher or lower implied probabilities than traditional sportsbooks, depending on whether informed traders or casual bettors dominate activity. Comparing the two can reveal where consensus differs and highlight potential value.
On Polymarket, this market is priced through an automated market maker that adjusts odds based on the ratio of shares bought and sold for each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders purchase or sell outcome shares, and the price moves continuously to reflect the latest supply and demand. The implied probability of each outcome is derived from the current price, so as new information or sentiment emerges, the odds update in real time without requiring a centralized operator to reset them.
This market resolves around Jul 15, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result, ensuring accuracy and fairness for all traders. Until that time, you can continue to trade your position, hedge exposure, or adjust your conviction as new information about player form, conditions, or other factors emerges.
Several factors could shift odds in this market before resolution. Player injury reports, recent tournament performance, head-to-head records, and court surface conditions are key catalysts. Weather forecasts closer to the event date, lineup changes, or unexpected withdrawals could also trigger sharp moves. Additionally, if one player wins a high-profile warm-up match or loses unexpectedly, traders may reassess probabilities. Monitor tennis news and player social media for announcements that could influence market sentiment.