TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 27, 7:55 PM EST
Polymarket
This market refers to the tennis match between Sebastian Heinrich and Shanker Heisnam in the M15 Monastir, Qualifying, originally scheduled for September 27, 2026 at 4:00AM ET. This market will resolve to 'Sebastian Heinrich' if Sebastian Heinrich advances against Shanker Heisnam. This market will resolve to 'Shanker Heisnam' if Shanker Heisnam advances against Sebastian Heinrich. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 11, 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 Sebastian Heinrich and Shanker Heisnam in the M15 Monastir, Qualifying, originally scheduled for September 27, 2026 at 4:00AM ET. This market will resolve to 'Sebastian Heinrich' if Sebastian Heinrich advances against Shanker Heisnam. This market will resolve to 'Shanker Heisnam' if Shanker Heisnam advances against Sebastian Heinrich. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 11, 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.
Often, prediction market odds reflect a different perspective than traditional sportsbooks. Sportsbooks may incorporate factors like public betting biases or promotional offers, while this market relies on individuals directly wagering on the outcome. Therefore, discrepancies can arise. If a significant difference exists, it could indicate that prediction market traders believe the sportsbook odds are mispriced, or that they have access to information not yet reflected in the sportsbook lines. Comparing these odds can be a useful exercise for informed decision-making.
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 reflects the implied probability of that outcome occurring. As more traders buy shares in a particular outcome, the price increases, and vice versa. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price indicates the collective wisdom of the crowd participating in this market, offering a unique perspective on the potential result of the Heinrich vs Heisnam match.
This market resolves around Oct 4, 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 M15 Monastir tennis match between Sebastian Heinrich and Shanker Heisnam, as reported by a recognized tennis authority. The platform will verify the result against these sources to determine the winning outcome and distribute payouts accordingly. Traders should monitor official sources for updates as the resolution date approaches.
Several factors could influence the trading activity in this market. Any news regarding the players’ form, potential injuries, or changes in playing conditions could shift the odds. Unexpected results in preceding matches for either Heinrich or Heisnam could also impact trader sentiment. Furthermore, significant shifts in overall betting patterns or large trades on Polymarket could lead to price fluctuations. Monitoring tennis news and observing trading volume will be key to understanding potential market movements before Oct 4, 2026.