This is a polymarket on the tennis match between Hugo Dellien and Kamil Majchrzak in the 2025 US Open men’s singles first round, scheduled for 2025-08-25. This market will resolve to 'Dellien' if Hugo Dellien advances against Kamil Majchrzak. This market will resolve to 'Majchrzak' if Kamil Majchrzak advances against Hugo Dellien. If the match is canceled (not played at all), ends in a tie, or is delayed beyond August 29, 2025 without a winner determined, this market will resolve to 50–50. If the match ends in a walkover (one player withdraws before the start and the other advances automatically), this market will resolve in favor of the player who officially advances to the next round. The primary resolution source will be official information from the US Open. A consensus of credible reporting may also be used.