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 28, 6:00 AM EST
Polymarket
This market refers to the tennis match between Nuno Borges and Orlando Luz in the Estoril Open, originally scheduled for July 21, 2026 at 6:00AM ET. This market will resolve to 'Nuno Borges' if Nuno Borges advances against Orlando Luz. This market will resolve to 'Orlando Luz' if Orlando Luz advances against Nuno Borges. 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 Nuno Borges and Orlando Luz in the Estoril Open, originally scheduled for July 21, 2026 at 6:00AM ET. This market will resolve to 'Nuno Borges' if Nuno Borges advances against Orlando Luz. This market will resolve to 'Orlando Luz' if Orlando Luz advances against Nuno Borges. 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 markets and traditional sportsbooks price events differently because they operate under distinct mechanisms. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets reflect live consensus from many independent traders competing for accuracy. This market aggregates the collective judgment of participants who have real financial incentive to forecast correctly. Comparing this market's implied probability to major sportsbook lines can reveal where the crowd sees value or disagreement, though direct parity is rare due to different fee structures and market depths.
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. Prices move continuously as new trades flow in, with each transaction shifting the implied odds based on the size and direction of the bet. The system incentivizes arbitrage and correction, so prices tend to reflect available information efficiently. You can buy or sell shares representing either outcome, and your position's value fluctuates with the market price until resolution.
This market resolves around Jul 28, 2026, once the tennis match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result, determining which trader positions are correct. Until that point, prices will continue to shift as new information emerges—such as player form, injury updates, or betting patterns—that might influence expectations. Early resolution is possible if circumstances prevent the match from being played as scheduled.
Several factors could shift this market significantly before Jul 28, 2026. Injury announcements or withdrawal news involving either player would trigger sharp repricing. Recent tournament results, head-to-head records, and surface-specific performance data often influence trader positioning. Court conditions, weather forecasts, and betting patterns from major sportsbooks can also signal shifting expectations. Media coverage and expert commentary may sway sentiment, while late-breaking form or lineup changes in the lead-up to the event typically generate the most volatile price swings as traders react to new information.