This market refers to the tennis match between Arthur Weber and Koki Matsuda in the Phan Thiet 4, originally scheduled for September 13, 2026 at 11:00PM ET. This market will resolve to “Weber” if Arthur Weber wins set 2. It will resolve to “Matsuda” if Koki Matsuda wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 27, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official Challenger match statistics.