In 2018, which golfer won the U.S. Open for the second year running?

Brooks Koepka (born May 3, 1990) is an American professional golfer on the Professional Golfers' Association (PGA) Tour. In October 2018, he became World Number 1 in the Official World Golf Ranking for 47 weeks after winning the 2018 Cheil Jedang (CJ) Cup. He won the U.S. Open in 2017 and 2018, and the PGA Championship in 2018 and 2019, becoming the first golfer in history to hold back-to-back titles in two majors simultaneously. He started his career on the European Challenge Tour and eventually the European Tour. He played college golf at Florida State University.

Koepka claimed his first major championship at the U.S. Open in 2017 at Erin Hills, Wisconsin. He successfully defended his title in 2018 at Shinnecock Hills on Long Island, the first golfer to win consecutive U.S. Opens since Curtis Strange in 1988 and 1989. He won his third major at the 2018 PGA Championship at Bellerive Country Club, shooting a major-championship-record-tying 264 over 72 holes. His 2018 victories in the U.S. Open and the PGA Championship were the first instance of that double since Tiger Woods in 2000. He won his fourth major at the 2019 PGA Championship at Bethpage Black.

The United States Open Championship, commonly known as the U.S. Open, is the annual open national championship of golf in the United States. It is the third of the four major championships in golf, and is on the official schedule of both the PGA Tour and the European Tour.