TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 2, 8:00 AM EST
Polymarket
This market refers to the tennis match between Julien Penzlin and Sydney Zick in the ITF Men Alkmaar, originally scheduled for June 25, 2026 at 8:00AM ET. This market will resolve to 'Julien Penzlin' if Julien Penzlin advances against Sydney Zick. This market will resolve to 'Sydney Zick' if Sydney Zick advances against Julien Penzlin. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Julien Penzlin and Sydney Zick in the ITF Men Alkmaar, originally scheduled for June 25, 2026 at 8:00AM ET. This market will resolve to 'Julien Penzlin' if Julien Penzlin advances against Sydney Zick. This market will resolve to 'Sydney Zick' if Sydney Zick advances against Julien Penzlin. 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 International Tennis Federation (ITF). 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 liability and profit, while prediction markets aggregate trader beliefs through continuous pricing. This market may show higher or lower implied probabilities than traditional sportsbooks, depending on whether informed traders or casual bettors dominate activity. Comparing the two can reveal where smart money disagrees with bookmaker consensus on the likely outcome.
On Polymarket, traders set prices through an automated market maker that adjusts odds based on order flow and liquidity. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The top outcome currently reflects market sentiment, with pricing updated continuously as new trades execute. Liquidity depth and recent volume patterns influence how quickly prices respond to new information, so checking the order book helps traders understand potential slippage on larger positions.
This market resolves around Jul 2, 2026, at which point the outcome is confirmed once the match result is verifiable from credible public reporting. The resolution hinges on the final score and match result as officially recorded by the ITF. Until that date, traders can adjust positions based on player form, injury updates, and other pre-match developments that may shift probabilities.
Several factors could shift this market significantly before the match. Player injuries, recent tournament performance, head-to-head records, and court surface conditions all influence trader sentiment. News about either competitor's form, coaching changes, or personal circumstances may trigger repricing. Additionally, betting patterns from professional traders and sharp money often move odds in the final hours before play begins, so monitoring late volume spikes can reveal where informed participants are positioning.