Lyon Open: Daniel Altmaier vs Taylor Fritz

Kalshi — primary rule

If Daniel Altmaier wins the Altmaier vs Fritz professional tennis match in the 2026 ATP Lyon Quarterfinal after a ball has been played, then the market resolves to Yes.

Polymarket — resolution criteria

This market refers to the tennis match between Daniel Altmaier and Taylor Fritz in the Lyon Open, originally scheduled for October 23, 2026 at 9:30AM ET. This market will resolve to 'Daniel Altmaier' if Daniel Altmaier advances against Taylor Fritz. This market will resolve to 'Taylor Fritz' if Taylor Fritz advances against Daniel Altmaier. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 6, 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.