TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 18, 11:00 AM EST
Polymarket
This market refers to the tennis match between Greet Minnen and Katie Volynets in the Newport, originally scheduled for July 11, 2026 at 11:00AM ET. This market will resolve to 'Greet Minnen' if Greet Minnen advances against Katie Volynets. This market will resolve to 'Katie Volynets' if Katie Volynets advances against Greet Minnen. 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Greet Minnen and Katie Volynets in the Newport, originally scheduled for July 11, 2026 at 11:00AM ET. This market will resolve to 'Greet Minnen' if Greet Minnen advances against Katie Volynets. This market will resolve to 'Katie Volynets' if Katie Volynets advances against Greet Minnen. 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 WTA Tour. A consensus of credible reporting may also be used.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and protect their margin, while prediction markets are driven purely by trader belief and financial risk. This market aggregates the views of thousands of independent traders with real money at stake, which can sometimes surface insights that sportsbooks have not yet fully priced in. Comparing the two can reveal where consensus differs and highlight potential value.
On Polymarket, this market is priced through an automated market maker that adjusts odds continuously as traders place bets. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome is represented as a tradable share, and the price of each share reflects the implied probability of that result. Traders profit by buying low and selling high, or by correctly predicting the eventual outcome. The system ensures liquidity and transparent pricing throughout the market's lifetime.
This market resolves around Jul 18, 2026, once the tennis match concludes and the result is verifiable from credible public reporting. The outcome is determined by the official match result—which player wins the encounter. No ambiguity exists in tennis match outcomes, making resolution straightforward. Traders who backed the correct winner receive their payout once the event is confirmed and the market settles.
Several factors can shift trader sentiment before the match. Injury reports or fitness updates about either player often trigger sharp repricing. Recent form, head-to-head history, and court surface preference (hard court at Newport) all influence expectations. Tournament draws and seeding can affect confidence in each player's trajectory. News coverage, expert analysis, and betting action from professional syndicates may also move the odds. As match day approaches, weather conditions and last-minute lineup confirmations can drive final adjustments.