TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 20, 4:00 AM EST
Polymarket
This market refers to the tennis match between Damir Dzumhur and Henrique Rocha in the Croatia Open, originally scheduled for July 13, 2026 at 4:00AM ET. This market will resolve to 'Damir Dzumhur' if Damir Dzumhur advances against Henrique Rocha. This market will resolve to 'Henrique Rocha' if Henrique Rocha 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.
This market refers to the tennis match between Damir Dzumhur and Henrique Rocha in the Croatia Open, originally scheduled for July 13, 2026 at 4:00AM ET. This market will resolve to 'Damir Dzumhur' if Damir Dzumhur advances against Henrique Rocha. This market will resolve to 'Henrique Rocha' if Henrique Rocha 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 incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets are driven purely by trader belief—there is no house edge or margin built in. In this market, you can compare the implied probability from Polymarket directly against published sportsbook lines to spot discrepancies. Many traders use this comparison to identify value; if the prediction market assigns a significantly different probability than major sportsbooks, it may signal an opportunity or reveal where one venue has fresher information.
On Polymarket, this market is priced through an automated market maker (AMM) that adjusts odds continuously as traders buy and sell outcome shares. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome—a Dzumhur victory or a Rocha victory—reflects the ratio of shares held in the pool, so larger trades move the price more dramatically than small ones. As new information emerges or trader conviction shifts, the AMM rebalances, and the displayed probability updates in real time. This mechanism ensures transparent, friction-free pricing without a traditional order book.
This market resolves around Jul 20, 2026, once the Croatia Open match between Dzumhur and Rocha concludes and the result is verified against credible public sources. The outcome is determined by the official match result—whichever player wins the contest will be the correct resolution. No ambiguity exists in tennis match outcomes, so resolution is typically swift and uncontested once the final point is played and confirmed by tournament officials or major sports data providers.
Several factors can shift trader positioning before the match begins. Recent form and head-to-head records often trigger repricing as traders digest updated statistics. Injury reports or late withdrawals would cause sharp moves, as would unexpected lineup changes or surface conditions that favor one player's style. News coverage, expert commentary, and betting action on traditional sportsbooks can also influence sentiment on this market. In the hours immediately before play, weather forecasts, court conditions, and any last-minute player statements may prompt final adjustments as traders refine their probability estimates.