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 22, 6:09 AM EST
Polymarket
This market refers to the tennis match between Melinda Biro and Sonia Erika Butuc Cerchez in the W15 Constanta, Qualifying, originally scheduled for September 22, 2026 at 3:00AM ET. This market will resolve to 'Melinda Biro' if Melinda Biro advances against Sonia Erika Butuc Cerchez. This market will resolve to 'Sonia Erika Butuc Cerchez' if Sonia Erika Butuc Cerchez advances against Melinda Biro. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 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 Melinda Biro and Sonia Erika Butuc Cerchez in the W15 Constanta, Qualifying, originally scheduled for September 22, 2026 at 3:00AM ET. This market will resolve to 'Melinda Biro' if Melinda Biro advances against Sonia Erika Butuc Cerchez. This market will resolve to 'Sonia Erika Butuc Cerchez' if Sonia Erika Butuc Cerchez advances against Melinda Biro. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 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 wisdom of the crowd, potentially offering a different perspective than traditional sportsbooks. Sportsbook odds are typically set by professional oddsmakers, while this market’s probabilities are determined by the collective predictions of individual traders. Discrepancies can arise due to differing information, biases, or simply variations in opinion. It’s common to see prediction markets incorporate information more quickly than sportsbooks, especially when new or unexpected developments occur related to the players or match conditions. Examining both can provide a more comprehensive understanding of potential outcomes.
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 corresponds to the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the prices adjust to reflect the evolving consensus. The current top outcome, Melinda Biro winning, has a chance percentage of 99, demonstrating strong trader conviction. The volume traded provides insight into how much interest this market is receiving.
This market resolves around Sep 29, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W15 Constanta tennis match between Melinda Biro and Sonia Erika Butuc Cerchez, as determined by official tournament organizers. The platform will verify the result against publicly available sources to ensure accuracy and transparency. Traders who correctly predicted the outcome will be eligible to receive payouts based on the final probabilities established by the market.
Several factors could influence the probabilities in this market before the match concludes. Any news regarding player injuries, changes in playing conditions (like weather), or updates on player form could shift trader sentiment. Unexpected results in other matches involving these players, or even broader trends in the W15 Constanta tournament, might also play a role. Significant shifts in public opinion, reflected in social media or sports news, could also impact trading activity and, consequently, the market’s probabilities. Monitoring these signals will be key to understanding potential price movements.