TOTAL VOLUME:
$134.2b
24H VOL:
$126,590,312
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,439,516,703
404,175
Markets across
30,277
events
MATCHED EVENTS:
2,685
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 9, 7:12 AM EST
Polymarket
This market refers to the doubles tennis match between Grevelius/Heinonen and Forejtek/Kellovsky in the Seville, originally scheduled for September 8, 2026 at 4:00AM ET. This market will resolve to 'Grevelius/Heinonen' if the team of Grevelius/Heinonen advances against Forejtek/Kellovsky. This market will resolve to 'Forejtek/Kellovsky' if the team of Forejtek/Kellovsky advances against Grevelius/Heinonen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 22, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the doubles tennis match between Grevelius/Heinonen and Forejtek/Kellovsky in the Seville, originally scheduled for September 8, 2026 at 4:00AM ET. This market will resolve to 'Grevelius/Heinonen' if the team of Grevelius/Heinonen advances against Forejtek/Kellovsky. This market will resolve to 'Forejtek/Kellovsky' if the team of Forejtek/Kellovsky advances against Grevelius/Heinonen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 22, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 ATP Tour. A consensus of credible reporting may also be used.
Typically, prediction market odds reflect the wisdom of the crowd and can differ from traditional sportsbook odds. Sportsbooks often set initial lines based on statistical models and expert analysis, while this market aggregates the beliefs of many individual traders. If sportsbook odds significantly disagree with the probabilities implied by this market, opportunities for arbitrage may arise. However, it's important to remember that both represent probabilities of an outcome, and discrepancies can exist due to differing information or biases.
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 more traders buy shares in a particular outcome, its price increases, and the implied probability rises. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price reflects the collective intelligence of all participants, constantly adjusting as new information becomes available and opinions shift regarding the Seville doubles match.
This market resolves around Sep 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will depend on the official result of the Seville doubles match, determining which team – Grevelius/Heinonen or Forejtek/Kellovsky – emerges victorious. The platform will verify the result against established sports data sources to ensure accuracy and transparency. Traders will then be able to claim their winnings based on the final outcome of this market.
Several factors could influence the price of this market before resolution. Any news regarding player injuries, changes in team strategy, or unexpected performance in preceding matches could shift trader sentiment. Publicly available analysis from tennis experts, or even significant betting activity in traditional sportsbooks, could also impact the probabilities reflected in this market. Unexpected weather conditions during the match, or even perceived biases in officiating, could also contribute to price movements as traders react to new information.