TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 14, 11:00 AM EST
Polymarket
This market refers to the doubles tennis match between Lewis/Sebov and Arseneault/Ovcharenko in the Newport, originally scheduled for July 7, 2026 at 11:00AM ET. This market will resolve to 'Lewis/Sebov' if the team of Lewis/Sebov advances against Arseneault/Ovcharenko. This market will resolve to 'Arseneault/Ovcharenko' if the team of Arseneault/Ovcharenko advances against Lewis/Sebov. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the doubles tennis match between Lewis/Sebov and Arseneault/Ovcharenko in the Newport, originally scheduled for July 7, 2026 at 11:00AM ET. This market will resolve to 'Lewis/Sebov' if the team of Lewis/Sebov advances against Arseneault/Ovcharenko. This market will resolve to 'Arseneault/Ovcharenko' if the team of Arseneault/Ovcharenko advances against Lewis/Sebov. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 WTA Tour. A consensus of credible reporting may also be used.
Prediction market odds and sportsbook odds often diverge because they serve different purposes and operate under different constraints. Sportsbooks set odds to balance liability and extract a margin, while prediction markets are driven by trader supply and demand with minimal friction. This market reflects what a broad community of forecasters believes will happen, whereas a sportsbook's line is designed to attract equal action on both sides. Over time, prediction markets have proven competitive with or more accurate than traditional oddsmakers, especially when the trader base is deep and diverse.
On Polymarket, traders set the price by buying and selling outcome shares in an automated market maker. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The odds you see reflect the current ratio of capital allocated to each outcome—higher demand for one outcome pushes its price up and the competing outcome's price down. As new information emerges or trader conviction shifts, the price adjusts in real time. This mechanism ensures that the market price converges toward the true probability as traders with better information profit from mispricings.
This market resolves around Jul 14, 2026, once the doubles match concludes and the result is verifiable from credible public reporting. The outcome will be determined by which team wins the match. Until that point, traders can continue to buy and sell shares, and the price will fluctuate based on incoming match updates, player form, and other relevant signals. Resolution is final once the official result is confirmed.
Several factors could shift this market significantly before resolution. Player injuries or withdrawals announced before the match would trigger sharp repricing. Recent tournament performance, head-to-head records, and court surface suitability for each team's playing style are key catalysts. Weather conditions on match day and any last-minute lineup changes could also move odds. Live match momentum—early set results, momentum swings, and player performance—will drive continuous repricing as the event unfolds, making real-time tracking valuable for active traders.