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 27, 2:00 PM EST
Polymarket
This market refers to the tennis match between Fiona Ferro and Yufei Ren in the Palermo, originally scheduled for July 20, 2026 at 2:00PM ET. This market will resolve to 'Fiona Ferro' if Fiona Ferro advances against Yufei Ren. This market will resolve to 'Yufei Ren' if Yufei Ren advances against Fiona Ferro. 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 Fiona Ferro and Yufei Ren in the Palermo, originally scheduled for July 20, 2026 at 2:00PM ET. This market will resolve to 'Fiona Ferro' if Fiona Ferro advances against Yufei Ren. This market will resolve to 'Yufei Ren' if Yufei Ren advances against Fiona Ferro. 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 operate under different incentive structures. Sportsbooks set lines to balance action and protect their margin, while prediction markets are driven by trader consensus and real-money conviction. This market reflects what thousands of independent traders believe will happen, rather than a single operator's view. Comparing this market's odds to major sportsbooks can reveal where public opinion and professional oddsmakers disagree, potentially highlighting value opportunities or consensus blind spots.
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Polymarket, this market is priced through an automated market maker that adjusts odds based on the volume and direction of trades. As more traders buy or sell shares representing each outcome, the price shifts to reflect the new balance of supply and demand. This continuous pricing mechanism means odds can move sharply on significant trading activity, even between major news events. The system incentivizes traders to correct mispricing, helping the market converge toward accurate probabilities over time.
This market resolves around Jul 27, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will reflect which player wins the match in Palermo. Resolution happens automatically once the event is confirmed, and traders' positions settle based on the verified result. Until that point, odds will continue to shift as new information emerges and traders adjust their positions.
Several factors could shift odds before the match takes place. Recent form and head-to-head records between the players often influence trader positioning, as do injury reports or last-minute withdrawals. Court conditions in Palermo, seeding announcements, and momentum from earlier tournament rounds can all trigger repricing. Social media sentiment, expert commentary, and betting patterns from traditional sportsbooks may also prompt traders to adjust their positions. Watch for any news about player fitness or confidence in the days leading up to the event.