8. Brooks Koepka, 2018-19
$9,684,006
Koepka won three PGA Tour events including a successful defense of his 2018 PGA Championship title. The former Florida State golfer also won The CJ Cup at Nine Bridges and the WGC-FedEx St. Jude Invitational. Out of the 21 events he played, he missed the cut in one and had nine top-10 finishes. Koepka also finished the season third in FedEx Cup standings.