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: Sep 6, 7:08 AM EST
Polymarket
This market refers to the tennis match between Ryan Nijboer and Martin VAN DER MEERSCHEN in the M15 Madrid, Main Draw, originally scheduled for September 6, 2026 at 4:30AM ET. This market will resolve to 'Ryan Nijboer' if Ryan Nijboer advances against Martin VAN DER MEERSCHEN. This market will resolve to 'Martin VAN DER MEERSCHEN' if Martin VAN DER MEERSCHEN advances against Ryan Nijboer. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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 Ryan Nijboer and Martin VAN DER MEERSCHEN in the M15 Madrid, Main Draw, originally scheduled for September 6, 2026 at 4:30AM ET. This market will resolve to 'Ryan Nijboer' if Ryan Nijboer advances against Martin VAN DER MEERSCHEN. This market will resolve to 'Martin VAN DER MEERSCHEN' if Martin VAN DER MEERSCHEN advances against Ryan Nijboer. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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.
Prediction market odds often reflect the collective wisdom of a diverse group of traders, potentially differing from those set by sportsbooks. Sportsbooks establish lines based on statistical models and expert analysis, while this market aggregates individual predictions. Discrepancies can arise due to differing information, biases, or simply a wider range of perspectives considered by prediction market participants. It’s common to see prediction markets move faster to incorporate new information than traditional sportsbooks, particularly in response to breaking news or unexpected developments affecting the match.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the likelihood of a particular outcome. The price of these shares directly reflects the implied probability of that outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market's price fluctuates based on supply and demand; if more traders believe Nijboer will win, the price of shares representing that outcome will increase, and vice versa. This dynamic pricing ensures the market reflects the most up-to-date collective assessment of the match’s potential results.
This market resolves around Sep 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the M15 Madrid match between Ryan Nijboer and Martin VAN DER MEERSCHEN. The platform will verify the winner based on publicly available match results and standings. Traders holding shares in the winning outcome will be paid out according to the final market price at the time of resolution, while those holding shares in the losing outcome will forfeit their investment.
Several factors could influence trading activity and shift the odds in this market. Any news regarding player injuries, changes in playing conditions, or unexpected announcements related to the M15 Madrid tournament could significantly impact the perceived probabilities. Furthermore, shifts in public sentiment, as reflected by analysis from sports commentators or changes in betting lines at traditional sportsbooks, could also drive trading volume and price movements. Unexpected performance in earlier rounds of the tournament could also alter expectations and affect this market.