TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 23, 10:30 AM EST
Polymarket
This market refers to the tennis match between Roman Safiullin and August Holmgren in the Nottingham 2, originally scheduled for June 16, 2026 at 10:30AM ET. This market will resolve to 'Roman Safiullin' if Roman Safiullin advances against August Holmgren. This market will resolve to 'August Holmgren' if August Holmgren advances against Roman Safiullin. 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Roman Safiullin and August Holmgren in the Nottingham 2, originally scheduled for June 16, 2026 at 10:30AM ET. This market will resolve to 'Roman Safiullin' if Roman Safiullin advances against August Holmgren. This market will resolve to 'August Holmgren' if August Holmgren advances against Roman Safiullin. 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and protect their margins, while prediction markets are driven by traders risking real capital on outcomes they believe will occur. This market aggregates the views of many independent forecasters, which can sometimes surface information or consensus that differs from traditional betting lines. Comparing the two can reveal where professional bettors and casual traders disagree on likelihood.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the collective belief in that outcome's probability; higher demand pushes the price up, signaling stronger confidence. You can enter or exit positions at any time before the market closes, and your trades directly influence the odds visible to other participants. This continuous price discovery mechanism means the market adapts instantly to new information or shifting sentiment.
This market resolves around Jun 23, 2026, once the tennis match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result—specifically, which player wins the encounter. Until that point, traders can adjust their positions as new information emerges, such as player form, injury updates, or head-to-head records. Resolution is automatic once the event is finalized and reported by authoritative sports sources.
Several factors could shift odds before the match takes place. Injury announcements or fitness updates for either player would likely trigger sharp moves, as would recent tournament results or changes in ranking. Media coverage highlighting one player's form or head-to-head advantage can sway trader sentiment. Court conditions, surface preference, and pre-match statements from the players themselves may also influence positioning. Closer to Jun 23, 2026, late-breaking news or betting action from professional syndicates could create volatility as the market reprices toward its final state.