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 9, 7:59 PM EST
Polymarket
This market will resolve to "Yes" if the listed player clinches a spot in the Semifinals in the Championships at Wimbledon per Wimbledon rules. Otherwise, the associated market will resolve to "No". If at any point it becomes impossible for the listed player to clinch a spot in the Semifinals in the Championships at Wimbledon (e.g. the player is eliminated), the associated market will resolve to "No". If the 2026 Championships at Wimbledon are cancelled, postponed after July 26, 11:59 PM ET, or the players that qualified for the Semifinals have not been officially confirmed by Wimbledon within that timeframe, this market will resolve to "No". The resolution source for this market will be official information from the AELTC and ATP; however, a consensus of credible reporting may also be used.
This market will resolve to "Yes" if the listed player clinches a spot in the Semifinals in the Championships at Wimbledon per Wimbledon rules. Otherwise, the associated market will resolve to "No". If at any point it becomes impossible for the listed player to clinch a spot in the Semifinals in the Championships at Wimbledon (e.g. the player is eliminated), the associated market will resolve to "No". If the 2026 Championships at Wimbledon are cancelled, postponed after July 26, 11:59 PM ET, or the players that qualified for the Semifinals have not been officially confirmed by Wimbledon within that timeframe, this market will resolve to "No". The resolution source for this market will be official information from the AELTC and ATP; however, a consensus of credible reporting may also be used.
Prediction market odds and sportsbook odds often diverge because they reflect different incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets are driven by trader conviction and information flow. This market typically shows tighter spreads and faster price discovery than traditional betting venues, since traders profit directly from accuracy rather than volume. Comparing this market's odds to major sportsbooks can reveal where consensus differs and highlight potential value. Both venues incorporate similar public information, but prediction markets often react faster to breaking news or shifting player form.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker (AMM) system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each player's odds are determined by the ratio of shares held in the liquidity pool; as traders accumulate shares in a particular outcome, the price for that outcome rises and the price for others falls. This mechanism ensures continuous pricing and allows traders to enter or exit positions at transparent, real-time rates. The spread between bid and ask prices reflects market uncertainty and liquidity depth, tightening as more capital flows into the market.
This market resolves around Jul 9, 2026, after the conclusion of the Wimbledon men's singles tournament. The outcome is determined by verifying which players actually reach the semifinals, confirmed once the event results are finalized and reported by credible public sources. Traders holding shares in players who advance to the final four receive payouts proportional to their holdings. Early resolution is possible if a player is eliminated or withdraws before the semifinals are contested, at which point their outcome resolves to no.
Player injuries, withdrawals, and recent tournament form are major catalysts that shift odds throughout the lead-up to Wimbledon. Unexpected upsets in earlier rounds can dramatically alter perceptions of a player's semifinal chances, triggering sharp repricing. Coaching changes, surface-specific performance data, and head-to-head matchup draws all influence trader positioning. Media narratives around momentum and mental resilience also sway sentiment. As the tournament progresses and the draw becomes clearer, this market will react to each completed match, with early-round results providing concrete evidence about which contenders are playing their best tennis.