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: Sep 10, 1:04 PM EST
Polymarket
This market refers to the tennis match between Toby Martin and Stefan Seifert in the M25 Plaisir + H, Main Draw, originally scheduled for September 10, 2026 at 9:00AM ET. This market will resolve to 'Toby Martin' if Toby Martin advances against Stefan Seifert. This market will resolve to 'Stefan Seifert' if Stefan Seifert advances against Toby Martin. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 24, 2026, 11:59 PM ET (14 days after the scheduled start), 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 Toby Martin and Stefan Seifert in the M25 Plaisir + H, Main Draw, originally scheduled for September 10, 2026 at 9:00AM ET. This market will resolve to 'Toby Martin' if Toby Martin advances against Stefan Seifert. This market will resolve to 'Stefan Seifert' if Stefan Seifert advances against Toby Martin. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 24, 2026, 11:59 PM ET (14 days after the scheduled start), 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.
Generally, prediction market odds often reflect a wisdom-of-the-crowd effect, potentially incorporating information and analysis beyond what’s readily available to traditional sportsbooks. While sportsbooks set initial lines based on statistical models and expert opinions, this market allows anyone to participate and express their beliefs, which can lead to odds that diverge from those offered by sportsbooks. It’s common to see prediction markets more accurately forecast outcomes, especially when there’s significant public interest or access to specialized knowledge. However, sportsbook odds still provide a valuable benchmark for comparison.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the probability of that outcome occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders buy shares in a particular outcome, its price increases, reflecting growing confidence. Conversely, selling pressure drives prices down. This dynamic pricing ensures that the market odds constantly adjust to incorporate new information and changing sentiment surrounding the Toby Martin vs Stefan Seifert match.
This market resolves around Sep 17, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the Toby Martin vs Stefan Seifert match, as determined by the governing sporting body. The market will then determine which outcome—a win for Toby Martin, a win for Stefan Seifert—is the correct one, and shares will be settled accordingly. This ensures a transparent and objective resolution process for all participants in this market.
Several factors could influence the price movement of this market. Any news regarding player injuries, changes in playing conditions, or significant shifts in public perception could impact trader sentiment. Unexpected announcements about the players’ form or strategy could also cause fluctuations. Furthermore, major upsets in related matches or tournaments might lead traders to reassess their probabilities. Ultimately, any information that alters the perceived likelihood of either Toby Martin or Stefan Seifert winning the match has the potential to move this market.