John Hahn, 22, of Hudson, Ohio, tees off in his match against Jeffrey Kang Friday morning.

No. 1 ranked Patrick Cantlay, 19, of Los Alamitos, Calif., tees off in his match against medalist Chris Williams Friday morning.

Stroke play medalist Chris Williams, 20, of Moscow, Idaho, tees off in his Friday morning match against No. 1 ranked Amateur Patrick Cantlay.