Final Qualifying: Shot 67-61--128 at Hino Golf Club (King Course), in Japan, on May 25

The Japan Golf Tour competitor will make his U.S. Open debut after earning medalist honors in the Japan final qualifier on May 25. Oiwa carded 12-under-par 128, which included a second-round 61. Oiwa won his maiden professional event, the 2025 Casio World Open Golf Tournament, in a season that also saw him finish second in two other events on the circuit, including the Japan Players Championship.