Fils vs Tiafoe — Arthur Fils

Kalshi — primary rule

If Arthur Fils wins the Fils vs Tiafoe professional tennis match in the 2026 ATP Tokyo Round Of 16 after a ball has been played, then the market resolves to Yes.

Polymarket — resolution criteria

This market refers to the tennis match between Arthur Fils and Frances Tiafoe in the Japan Open Tennis Championships, originally scheduled for October 2, 2026 at 4:30AM ET. This market will resolve to 'Arthur Fils' if Arthur Fils advances against Frances Tiafoe. This market will resolve to 'Frances Tiafoe' if Frances Tiafoe advances against Arthur Fils. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 16, 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.