2018 PGA Championship, 2018 U.S. Open, 2017 U.S. Open, 2015 Waste Management Phoenix Open.
Koepka won his second consecutive U.S. Open in June at Shinnecock Hills and followed that with his third major victory at Bellerive Country Club in the 100th PGA Championship. He went 69-63-66-66 at Bellerive to hold off a hard-charging Tiger Woods and claim a two-shot victory. Koepka joins Gene Sarazen, Ben Hogan, Jack Nicklaus and Tiger Woods as the only players to win a U.S. Open and PGA Championship in the same year. At Shinnecock, he shot a dazzling 68 on Sunday to finish a shot ahead of Tommy Fleetwood and two ahead of 2016 Ryder Cup teammate Dustin Johnson. Koepka is the first player to win consecutive U.S. Opens since Curtis Strange in 1988 and 1989. That major victory marked a return to form for the big-hitting Koepka, who missed time in early 2018 with a wrist injury. He was an impressive 3-1-0 in his Ryder Cup debut at Hazeltine in 2016. That carried him to a strong season in 2016-17, including the U.S. Open at Erin Hills and seven top-10 finishes in 24 starts.