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 31, 3:18 PM EST
Polymarket
This market refers to the doubles tennis match between Jans/Vliegen and Reyes/Stalder in the Sioux Falls, originally scheduled for October 31, 2026 at 4:00PM ET. This market will resolve to 'Jans/Vliegen' if the team of Jans/Vliegen advances against Reyes/Stalder. This market will resolve to 'Reyes/Stalder' if the team of Reyes/Stalder advances against Jans/Vliegen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 14, 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 Jans/Vliegen and Reyes/Stalder in the Sioux Falls, originally scheduled for October 31, 2026 at 4:00PM ET. This market will resolve to 'Jans/Vliegen' if the team of Jans/Vliegen advances against Reyes/Stalder. This market will resolve to 'Reyes/Stalder' if the team of Reyes/Stalder advances against Jans/Vliegen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 14, 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.
Generally, prediction market odds often reflect a ‘wisdom of the crowd’ that can differ from traditional sportsbooks. Sportsbooks may incorporate factors like public betting biases or promotional offers, while this market relies on traders directly assessing the probability of each outcome. It’s common to see discrepancies, particularly before significant events or when new information emerges. Comparing these odds can provide a broader perspective on the perceived likelihood of Jans/Vliegen or Reyes/Stalder winning the Sioux Falls doubles match, potentially identifying value in either market.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in each outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. As more traders participate and express their views, the price adjusts to reflect the collective assessment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price indicates what traders are willing to pay for exposure to the outcome of the Sioux Falls doubles match, offering a real-time gauge of expectations.
This market resolves around Nov 7, 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 between Jans/Vliegen and Reyes/Stalder. The platform will verify the result against established sources to determine which team emerged victorious, triggering the payout to those who correctly predicted the winner in this market. Traders should monitor official tournament updates as the resolution date approaches.
Several factors could influence the trading activity in this market before Nov 7, 2026. Any news regarding player form, potential injuries to either Jans, Vliegen, Reyes, or Stalder, or changes in playing conditions could shift trader sentiment. Unexpected results in preceding matches for either team could also impact the odds. Furthermore, large volume trades from informed participants could signal a change in expectations, causing the price to move rapidly. Monitoring tennis news and observing trading patterns will be key to understanding potential shifts in this market.