TOTAL VOLUME:
$154.4b
24H VOL:
$230,589,906
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,885,293,300
410,482
Markets across
40,213
events
MATCHED EVENTS:
4,340
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 10:34 PM EST
Polymarket
This market refers to the doubles tennis match between Poulsen/Slavic and Reyes/Stalder in the Sioux Falls, originally scheduled for October 27, 2026 at 11:00AM ET. This market will resolve to 'Poulsen/Slavic' if the team of Poulsen/Slavic advances against Reyes/Stalder. This market will resolve to 'Reyes/Stalder' if the team of Reyes/Stalder advances against Poulsen/Slavic. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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 Poulsen/Slavic and Reyes/Stalder in the Sioux Falls, originally scheduled for October 27, 2026 at 11:00AM ET. This market will resolve to 'Poulsen/Slavic' if the team of Poulsen/Slavic advances against Reyes/Stalder. This market will resolve to 'Reyes/Stalder' if the team of Reyes/Stalder advances against Poulsen/Slavic. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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.
Prediction market odds often reflect the collective wisdom of a diverse group of participants, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and risk management, while this market aggregates the views of many individual bettors. If sportsbook odds significantly differ from those seen here, it could indicate disagreement about the likely outcome of the Sioux Falls doubles match, or differing assessments of the probabilities involved. It’s important to note that prediction markets can sometimes be more accurate than traditional forecasts, especially when a large and informed group participates.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the likelihood of each outcome. The price of a share 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 express their views, the prices adjust, reflecting the evolving consensus. This dynamic pricing allows for a real-time assessment of expectations surrounding the Sioux Falls doubles match, driven entirely by supply and demand within the market itself.
This market resolves around Nov 3, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Sioux Falls doubles match, determining which team—Poulsen/Slavic or Reyes/Stalder—emerges victorious. The platform will verify the result against established sources to ensure accuracy and transparency. Traders holding shares in the winning outcome will be entitled to a payout, while those holding shares in the losing outcome will not.
Several signals or events could significantly move this market before resolution. Any news regarding player injuries, changes in team strategy, or unexpected performance in preceding matches could influence trader sentiment. Publicly available analysis from sports commentators or expert predictions could also shift the odds. Furthermore, large trades on Polymarket by informed participants could indicate new information or a change in expectations regarding the Sioux Falls doubles match, leading to price adjustments and increased volume as traders react to these developments.