TOTAL VOLUME:
$134.3b
24H VOL:
$121,875,814
24H TRANSACTIONS:
2,403,290,006
OPEN INTEREST:
$1,437,844,306
405,535
Markets across
30,523
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
ITF Claremont: Aidan Kim vs Spencer Johnson Match O/U 21.5
- Polymarket
ITF Claremont: Aidan Kim vs Spencer Johnson Match O/U 21.5 - Polymarket
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Vol.
·
Resolved Jun 27, 2026
Closed: Jul 3, 3:00 PM EST
Polymarket
This market refers to the tennis match between Aidan Kim and Spencer Johnson in the ITF Men Claremont, originally scheduled for June 26, 2026 at 3:00PM ET. This market will resolve to 'Aidan Kim' if Aidan Kim advances against Spencer Johnson. This market will resolve to 'Spencer Johnson' if Spencer Johnson advances against Aidan Kim. 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 Aidan Kim and Spencer Johnson in the ITF Men Claremont, originally scheduled for June 26, 2026 at 3:00PM ET. This market will resolve to 'Aidan Kim' if Aidan Kim advances against Spencer Johnson. This market will resolve to 'Spencer Johnson' if Spencer Johnson advances against Aidan Kim. 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 manage risk, while prediction markets like this one are driven by traders seeking profit through accurate forecasting. Prediction markets can sometimes price outcomes more efficiently than traditional sportsbooks because they aggregate dispersed information from many participants. However, sportsbook odds remain a useful benchmark for comparing how this market's implied probability aligns with professional oddsmakers' assessments of the match.
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 current implied probability reflects the balance of buy and sell orders at any given moment. As new information emerges or trader sentiment shifts, the price adjusts dynamically. Each outcome has a price between 0 and 1, where higher prices indicate greater perceived likelihood. This continuous pricing mechanism ensures the market remains responsive to new developments and trader conviction throughout the lead-up to the match.
This market resolves around Jul 3, 2026, once the ITF Claremont match concludes and the result is verifiable from credible public sources. The outcome is determined by the official match result—which player wins the contest. Traders holding shares in the winning outcome receive their payout, while incorrect positions expire worthless. Resolution timing may shift slightly if the match is postponed or rescheduled. Monitoring official tournament updates and player announcements closer to the date will help you stay informed on any changes to the scheduled event.
Several factors could shift the odds significantly before the match takes place. Player injuries, recent tournament performance, head-to-head records, and court surface suitability all influence trader positioning. News about either player's form, fitness, or mental readiness can trigger sharp price movements. Betting activity from informed participants—such as professional tennis analysts or those with insider knowledge—often precedes larger swings. Weather forecasts closer to the event date and last-minute lineup changes may also prompt traders to reassess their positions. Monitoring tennis news and social media from credible sources helps you anticipate potential catalysts.