SAN FRANCISCO (AP) — Top-ranked amateur Jackson Koivun didn’t make a birdie until his final hole for the second straight round in the U.S. Amateur. The difference Thursday was he was eliminated at The Olympic Club, along with three others from the top 10 in the world amateur ranking.

Oklahoma State junior Preston Stout, the medalist in stroke-play qualifying and the No. 4-ranked amateur, became the only player from the top 10 to advance, taking the lead for the first time on the 13th hole before winning, 2 and 1, over David Liechty.

Koivun, who tied for fifth in the Wyndham Championship on the PGA Tour two weeks ago, squeaked by in his opening match. He wasn’t so fortunate in the second round, as Illinois junior Max Herendeen took the lead on the seventh hole and led the rest of the day,

See Full Page