On May 20th, Beijing time, Brooks-Coppa won the PGA Championship with an -8 score and won the fourth championship of the last eight Grand Slam tournaments.
This victory made Copka the first player to defend two different Grand Slam tournaments in history: 2017-2018 US Open, 2018-2019PGA Championship.
He also became the first player to win his first four Grand Slam titles in two years.