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 22, 2:10 PM EST
Polymarket
This market refers to the tennis match between Tommaso Compagnucci and Petros Tsitsipas in the ITF Men Ollersbach, originally scheduled for July 22, 2026 at 4:00AM ET. This market will resolve to 'Tommaso Compagnucci' if Tommaso Compagnucci advances against Petros Tsitsipas. This market will resolve to 'Petros Tsitsipas' if Petros Tsitsipas advances against Tommaso Compagnucci. 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 Tommaso Compagnucci and Petros Tsitsipas in the ITF Men Ollersbach, originally scheduled for July 22, 2026 at 4:00AM ET. This market will resolve to 'Tommaso Compagnucci' if Tommaso Compagnucci advances against Petros Tsitsipas. This market will resolve to 'Petros Tsitsipas' if Petros Tsitsipas advances against Tommaso Compagnucci. 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 mechanisms. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets aggregate trader beliefs through continuous price discovery. This market's odds may lead or lag traditional sportsbook lines depending on information flow and trader participation. Comparing the two can reveal where the broader market sees value or where consensus shifts. Neither is inherently more accurate, but tracking both provides a fuller picture of expectations.
On Polymarket, this market is priced through an automated market maker that converts trader orders into real-time probability estimates. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders purchase shares representing each outcome, and the price of those shares reflects the collective assessment of the match result. As new information emerges or sentiment shifts, the price adjusts dynamically. The spread between bid and ask prices narrows or widens based on trading activity, and volume typically increases closer to the event date as more participants engage.
This market resolves around Jul 29, 2026, with the outcome confirmed once the tennis match is verifiable from credible public reporting. The result will reflect the official winner of the ITF Ollersbach event between the two players. Resolution typically occurs shortly after the match concludes and the result is published by the tournament organizers or recognized sports data providers. Traders holding shares in the winning outcome receive their payout once verification is complete.
Several factors may shift odds before the match takes place. Recent performance data, head-to-head records, and player rankings can influence trader sentiment. Injury announcements, withdrawal news, or changes in court conditions may trigger sharp price moves. Media coverage and expert commentary often sway perception, especially as the event date approaches. Trading volume typically spikes closer to Jul 29, 2026, reflecting heightened interest and last-minute position adjustments. Monitor player social media and official tournament updates for developments that could reshape expectations.