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, 5:00 AM EST
Polymarket
This market refers to the doubles tennis match between Smith/Vance and Navarro/Hernandez in the Segovia, originally scheduled for July 21, 2026 at 5:00AM ET. This market will resolve to 'Smith/Vance' if the team of Smith/Vance advances against Navarro/Hernandez. This market will resolve to 'Navarro/Hernandez' if the team of Navarro/Hernandez advances against Smith/Vance. 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the doubles tennis match between Smith/Vance and Navarro/Hernandez in the Segovia, originally scheduled for July 21, 2026 at 5:00AM ET. This market will resolve to 'Smith/Vance' if the team of Smith/Vance advances against Navarro/Hernandez. This market will resolve to 'Navarro/Hernandez' if the team of Navarro/Hernandez advances against Smith/Vance. 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different mechanisms. Sportsbooks set lines based on professional oddsmakers' models and manage risk through margin, while prediction markets price outcomes through continuous trader participation and real-money incentives. In this market, traders collectively estimate the probability of each team winning, which can lead to sharper or softer lines than sportsbooks offer. Comparing the two reveals whether the crowd's consensus differs from professional consensus, highlighting potential value or consensus shifts in real time.
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. As participants buy and sell shares representing each outcome, the price adjusts continuously to reflect the latest belief about which team will win. The current odds reflect the aggregate conviction of all active traders, with higher prices indicating stronger confidence in that outcome. This mechanism ensures prices remain responsive to new information and trader sentiment throughout the event window.
This market resolves around Jul 28, 2026, once the match concludes and the winner is verified against credible public sources. The outcome is determined by which team wins the doubles match in Segovia. Traders holding shares in the winning team receive their payout, while incorrect predictions expire worthless. Resolution typically occurs shortly after the final point, pending confirmation from official match records or reputable sports reporting.
Several factors could shift odds before the match begins or during play. Pre-match developments include player injuries, recent form updates, head-to-head records, and court conditions at the Segovia venue. During the match itself, momentum swings, set scores, and visible performance gaps between the teams typically drive sharp price movements. Major upsets or unexpected tactical adjustments can also trigger rapid repricing. Traders monitoring live action often react faster than those relying on delayed information, creating opportunities for active participants to capitalize on real-time developments.