TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 25, 6:40 PM EST
Polymarket
This market refers to the tennis match between Cooper Woestendick and Andrew Fenty in the Sioux Falls, USA, Qualifying, originally scheduled for October 25, 2026 at 2:30PM ET. This market will resolve to 'Cooper Woestendick' if Cooper Woestendick advances against Andrew Fenty. This market will resolve to 'Andrew Fenty' if Andrew Fenty advances against Cooper Woestendick. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 8, 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Cooper Woestendick and Andrew Fenty in the Sioux Falls, USA, Qualifying, originally scheduled for October 25, 2026 at 2:30PM ET. This market will resolve to 'Cooper Woestendick' if Cooper Woestendick advances against Andrew Fenty. This market will resolve to 'Andrew Fenty' if Andrew Fenty advances against Cooper Woestendick. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 8, 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 ATP Tour. A consensus of credible reporting may also be used.
On Polymarket, this market is priced through a continuous auction mechanism. Traders buy and sell shares representing their belief in the probability of each outcome. As more shares are traded, the price adjusts to reflect the collective sentiment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of a share directly corresponds to the implied probability of that outcome occurring. For example, a share priced at 60 means there is a 60% implied probability of that outcome. This dynamic pricing ensures the market reflects the most up-to-date information available from traders.
This market resolves around Nov 1, 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 Cooper Woestendick versus Andrew Fenty tennis match in Sioux Falls. The platform will verify the winner through official tournament results and reporting. This ensures a transparent and accurate resolution process for all participants in this market, reflecting the actual result of the tennis match.
Several factors could influence the odds in this market before Nov 1, 2026. Any news regarding player injuries, changes in playing conditions, or updated rankings could shift trader sentiment. Unexpected upsets in earlier rounds of the tournament, or even weather forecasts impacting the match schedule, could also cause significant movement. Furthermore, large trades on Polymarket by informed bettors can quickly alter the probabilities, reflecting new information or a change in perceived advantage for either player in the Sioux Falls tennis match.