Amateur Nick Dunlap has won The American Express with a final round 70 for a 29-under, 259 total.
Christiaan Bezuidenhout came second at 28-under, Kevin Yu, Xander Schauffele and Justin Thomas tied for third at 27-under.
Bezuidenhout enters at number 8, Yu and Thomas enter at T23 and Schauffele moves up to number 7 from T13.
Related: Nick Dunlap becomes first amateur to win PGA Tour event since 1991
Dunlap is the youngest amateur to win on the PGA Tour since 1910.