TOTAL VOLUME:
$134.2b
24H VOL:
$143,246,370
24H TRANSACTIONS:
2,403,290,006
OPEN INTEREST:
$1,452,035,386
405,032
Markets across
30,543
events
MATCHED EVENTS:
2,690
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 21, 5:09 PM EST
Polymarket
This market refers to the tennis match between Evan Zhu and Thanasi Kokkinakis in the Bloomfield Hills, originally scheduled for July 21, 2026 at 12:30PM ET. This market will resolve to 'Evan Zhu' if Evan Zhu advances against Thanasi Kokkinakis. This market will resolve to 'Thanasi Kokkinakis' if Thanasi Kokkinakis advances against Evan Zhu. 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 Evan Zhu and Thanasi Kokkinakis in the Bloomfield Hills, originally scheduled for July 21, 2026 at 12:30PM ET. This market will resolve to 'Evan Zhu' if Evan Zhu advances against Thanasi Kokkinakis. This market will resolve to 'Thanasi Kokkinakis' if Thanasi Kokkinakis advances against Evan Zhu. 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 lines to balance action and lock in profit margins, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market may price the match differently than traditional sports betting sites, sometimes offering sharper or more volatile signals depending on trader conviction. Comparing both sources can reveal where consensus is strongest and where outlier views exist in the betting ecosystem.
On Polymarket, this market is priced through an automated market maker that converts trader orders into real-time probabilities. 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 ratio of buy and sell volume determines the odds at any moment. As more traders back one player, that outcome's price rises and the implied probability adjusts upward. This dynamic pricing mechanism ensures the market stays responsive to new information and trader sentiment throughout the lead-up to the match.
This market resolves around Jul 28, 2026, once the match concludes and the result is verified against credible public sources. The outcome is determined by which player wins the completed match in Bloomfield Hills. Until that point, traders can continue to buy and sell shares as odds fluctuate. Resolution is automatic once the event result is confirmed, and all positions settle according to the final winner.
Several factors may shift odds before the match takes place. Recent tournament performance, head-to-head records, court surface preference, and player injury reports can all trigger repricing. News about either player's form, ranking changes, or coaching adjustments may influence trader positioning. Weather conditions closer to the event date and late-breaking roster or scheduling updates could also sway sentiment. Traders monitor these catalysts closely, so any credible development may cause sharp moves in this market's price.