Parents are Jeff and Susan, who were both born in South Korea and met in Chicago after moving to the United States at different times. Susan immigrated to the U.S. in the mid 1970s, while Jeff moved following military service in South Korea. With Susan a flight attendant, Jeff worked for several years in architecture.

Stays connected with University of Texas alumni including Jordan Spieth and Ben Crenshaw.

Lives in Las Vegas with roommate Maverick McNealy. Before getting their TOUR cards at the same time, teamed up at the Walker Cup.

When not playing golf, enjoys music and going to shows, and following sports, especially Chicago sports teams, including the Cubs.

One superstition is to always keep his golf ball in his left pocket and tees in his right pocket

His earliest golf memory was meeting Jason Day at a Korn Ferry Tour event in Chicago when Day was 19. He later shared the story with Day at the Masters.

Supports the American Junior Golf Association's ACE Grant, which provides financial assistance to young men and women who aspire to earn a college golf scholarship through competitive junior golf.

Earned his degree in government after promising his parents he would graduate. Older Sister, Deborah, graduated from Harvard

Lost to Doc Redman at the 2017 U.S. Amateur at Riviera Country Club. With the runner-up, earned invitations to the 2018 Masters Tournament and U.S. Open. At the 2018 Masters, recorded multiple eagles and was the only amateur to make the cut, earning low amateur honors (T50).

Won the 2018 Ben Hogan Award as the best male collegiate golfer.