Morikawa turned professional in June 2019 and quickly made a mark in the golfing world. He won his first PGA Tour event at the Barracuda Championship in July 2019. His breakout moment came in 2020 when he won the PGA Championship, making him the third-youngest golfer to win the major. He continued his success by winning the 2021 Open Championship, further establishing himself as one of the top golfers in the world. His consistent performance and ability to handle pressure have been key factors in his rise to the top ranks of professional golf.