TOTAL VOLUME:
$134.2b
24H VOL:
$126,590,312
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,439,516,703
404,175
Markets across
30,277
events
MATCHED EVENTS:
2,685
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 23, 12:00 PM EST
Polymarket
This market tracks the outcome of the Croatia Open tennis match between Damir Dzumhur and Matteo Arnaldi, with resolution determined by which player advances from the contest. On Polymarket, Damir Dzumhur to advance is priced at 100.0%, according to ATP Tour official scoring records. The match was originally scheduled for July 16, 2026 at 12:00 PM ET, so watch for the completion of this fixture by the resolution date of July 23, 2026 to confirm the final outcome.
This market refers to the tennis match between Damir Dzumhur and Matteo Arnaldi in the Croatia Open, originally scheduled for July 16, 2026 at 12:00PM ET. This market will resolve to 'Damir Dzumhur' if Damir Dzumhur advances against Matteo Arnaldi. This market will resolve to 'Matteo Arnaldi' if Matteo Arnaldi advances against Damir Dzumhur. 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 ATP Tour. 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 odds to balance their book and lock in profit margins, while prediction markets are driven by trader consensus without a built-in house edge. This market aggregates the views of thousands of independent participants, which can sometimes surface insights that traditional oddsmakers miss. However, sportsbook odds benefit from professional analysis and real-time adjustment. Comparing both sources helps traders identify value and understand where market consensus differs from professional assessment.
On Polymarket, this market is priced through an automated market maker that converts trader activity into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Shares representing each outcome trade continuously, and the price of each share reflects the implied probability of that result. As more traders buy or sell a particular outcome, the price adjusts automatically to balance supply and demand. This mechanism ensures transparent, friction-free pricing and allows participants to enter or exit positions at any time before the market closes, with prices always visible on the order book.
This market resolves around Jul 23, 2026, once the Croatia Open match between Dzumhur and Arnaldi concludes and the result is verifiable from credible public sources. The outcome is determined by the official match result—either a win for one player or, in rare cases, a retirement or disqualification. Traders holding shares in the winning outcome receive their payout, while losing shares expire worthless. Resolution typically occurs within hours of the final point, allowing quick settlement and capital redeployment.
Several factors can shift odds before the match begins. Recent tournament performance, injury reports, or withdrawal announcements will trigger immediate repricing as traders reassess win probabilities. Court surface conditions, weather forecasts, and head-to-head records also influence sentiment. Betting activity on external sportsbooks may signal sharp money and cascade into prediction market moves. Player statements, coaching changes, or late-breaking news about form can spark volatility. Close to match time, pre-match warm-up reports and official lineups often trigger final adjustments as traders lock in their final positions.