Wendelken vs Onclin — Harry Wendelken

Kalshi — primary rule

If Harry Wendelken wins the Wendelken vs Onclin professional tennis match in the 2026 ATP Brussels Qualification Round 1 after a ball has been played, then the market resolves to Yes.

Polymarket — resolution criteria

This market refers to the tennis match between Harry Wendelken and Gauthier Onclin in the European Open, Qualification, originally scheduled for October 17, 2026 at 6:30AM ET. This market will resolve to 'Harry Wendelken' if Harry Wendelken advances against Gauthier Onclin. This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Harry Wendelken. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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.