TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 8, 4:00 AM EST
Polymarket
This market refers to the tennis match between Anna Hertel and Astrid Olsen in the ITF Women Getxo, originally scheduled for July 1, 2026 at 4:00AM ET. This market will resolve to 'Anna Hertel' if Anna Hertel advances against Astrid Olsen. This market will resolve to 'Astrid Olsen' if Astrid Olsen advances against Anna Hertel. 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 Anna Hertel and Astrid Olsen in the ITF Women Getxo, originally scheduled for July 1, 2026 at 4:00AM ET. This market will resolve to 'Anna Hertel' if Anna Hertel advances against Astrid Olsen. This market will resolve to 'Astrid Olsen' if Astrid Olsen advances against Anna Hertel. 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 action and lock in profit margins, while prediction markets let traders freely price outcomes based on their beliefs. This market may show materially different implied probabilities than traditional sports betting sites, especially if one venue attracts sharper or more specialized tennis analysis. Comparing the two can reveal where the broader market sees edge or disagreement on the match result.
On Polymarket, traders set the odds through an automated market maker that adjusts prices 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 current implied probability reflects the aggregate belief of all active traders, updated continuously as new positions are opened and closed. Prices move higher when more capital flows toward one outcome and lower when traders exit those positions, creating a dynamic equilibrium that balances supply and demand in real time.
This market resolves around Jul 8, 2026, once the match concludes and the winner is verified against credible public sources. The outcome is determined by the official result of the ITF Getxo tennis event, with no ambiguity over which player prevails. Resolution typically occurs within hours of the final point, allowing traders to settle positions quickly and move on to other markets.
Key catalysts include recent tournament performance by either player, injury reports or fitness updates, head-to-head record and playing style matchups, and court conditions at the venue. Betting activity on external sportsbooks or social media sentiment can also shift trader positioning. Weather delays, unexpected lineup changes, or news about either competitor's form in the days before the match may trigger sharp repricing as new information reaches the market and traders adjust their positions accordingly.