After the start of the final round was suspended 3 1/2 hours by rain Saturday, Kim had a 1-up lead through 25 holes when play was suspended, forcing the final to be extended a day because of weather for the first time since 2002 at Atlanta Athletic Club.
The 17-year-old Bai quickly won Nos. 26 and 27 to take the lead when play resumed on the Daniel Island Club’s Ralston Creek Course.
The match was tied before Kim hit his approach on the 376-yard, par-4 35th hole to seven feet. Bai missed a long birdie try before Kim made his putt for a 1-up lead.
Trying to square the match on the par-5 36th hole, Bai missed the green well right from 250 yards with his second shot and then chipped over the green before conceding Kim’s birdie.
“Bryan is not going to make anything less than a par,” Bai said. “He could even make birdie, so I thought I just had to give it a shot, try and get on the green, have a putt for eagle or get it close.”
Both finalists already earned spots next month in the US Amateur at Cherry Hills in the Denver suburbs, while Kim also got a spot in the 2024 US Amateur at Hazeltine in Minnesota.