TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 13, 1:00 PM EST
Polymarket
This market refers to the tennis match between Madison Brengle and Ana Sofia Sanchez in the Newport, originally scheduled for July 6, 2026 at 1:00PM ET. This market will resolve to 'Madison Brengle' if Madison Brengle advances against Ana Sofia Sanchez. This market will resolve to 'Ana Sofia Sanchez' if Ana Sofia Sanchez advances against Madison Brengle. 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 Madison Brengle and Ana Sofia Sanchez in the Newport, originally scheduled for July 6, 2026 at 1:00PM ET. This market will resolve to 'Madison Brengle' if Madison Brengle advances against Ana Sofia Sanchez. This market will resolve to 'Ana Sofia Sanchez' if Ana Sofia Sanchez advances against Madison Brengle. 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 sportsbook odds often diverge because they reflect different mechanisms. Sportsbooks set lines to balance action and manage risk, while prediction markets like this one are priced by traders who profit from accurate forecasts. Sportsbooks typically incorporate implied margins, whereas prediction markets aggregate the collective belief of participants without a built-in spread. Comparing this market's odds to major sportsbook lines can reveal where the two communities disagree on player probabilities, offering insight into potential value or consensus gaps.
On Polymarket, traders set the odds through an automated market maker that adjusts prices based on buy and sell volume. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders buy shares predicting one outcome, the higher that outcome's price rises, and vice versa. This continuous repricing mechanism ensures the market reflects real-time sentiment and new information about the match. Prices converge toward true probability as more capital flows into the market, rewarding accurate predictions and penalizing poor ones.
This market resolves around Jul 13, 2026, once the match concludes and the result is verified against credible public sources. The outcome is determined by which player wins the competition. Resolution occurs after the event is complete and the winner is officially confirmed through reliable reporting. Traders holding shares in the winning outcome receive their payout, while incorrect positions expire worthless.
Several factors could shift this market significantly before Jul 13, 2026. Recent player performance, injury reports, or withdrawal announcements would immediately impact odds. Changes in player rankings, head-to-head records, or surface-specific form could influence trader sentiment. Court conditions, weather, or scheduling adjustments might also trigger repricing. News about either competitor's recent matches, fitness level, or mental state could sway the market. As the event date approaches, late-breaking developments and updated betting information typically drive final price adjustments.