TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 15, 1:00 PM EST
Polymarket
This market refers to the tennis match between Stian Klaassen and William Zhang in the ITF Men Rancho Santa Fe, originally scheduled for July 8, 2026 at 1:00PM ET. This market will resolve to 'Stian Klaassen' if Stian Klaassen advances against William Zhang. This market will resolve to 'William Zhang' if William Zhang advances against Stian Klaassen. 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 Stian Klaassen and William Zhang in the ITF Men Rancho Santa Fe, originally scheduled for July 8, 2026 at 1:00PM ET. This market will resolve to 'Stian Klaassen' if Stian Klaassen advances against William Zhang. This market will resolve to 'William Zhang' if William Zhang advances against Stian Klaassen. 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 protect their margins, while prediction markets like this one aggregate beliefs from traders risking real capital on outcomes. Prediction markets can sometimes offer sharper, more efficient pricing because traders profit directly from accuracy. However, sportsbook odds may incorporate additional factors like injury reports or late-breaking news. Comparing the two can reveal where consensus differs and highlight potential value.
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 price of each outcome reflects the collective confidence of all active traders; as more capital flows into one side, its price rises and the implied probability adjusts upward. You can enter limit or market orders to trade at your preferred price, and the spread between bid and ask represents the current liquidity and conviction around the match result. Real-time price discovery ensures the market stays responsive to new information.
This market resolves around Jul 15, 2026, once the Klaassen vs Zhang match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result—either a win for Klaassen, a win for Zhang, or any other relevant result category the market tracks. Resolution typically occurs within hours of the final point, allowing traders to settle their positions and collect winnings on the correct side.
Several factors can shift trader sentiment before the match concludes. Recent form and head-to-head records between the two players often influence early positioning. Injury announcements, court surface conditions, or weather updates at the venue can trigger sharp moves. Betting action from professional syndicates may signal confidence in one player's chances. Live trading during the match itself—as points are won and momentum swings—typically creates the most volatile price action. News coverage and expert commentary closer to match day can also reshape market expectations.