A promising amateur golfer, Lee won the 2016 US Junior Amateur, defeating Noah Goodwin 2&1 in the final, one of eight amateur titles.

Turned professional in 2019 and just missed out on retaining his DP World Tour card after finishing 117th on the Race to Dubai Rankings. Less than four months later, he earned full playing privileges on the DP World Tour after claiming his maiden victory at the 2020 ISPS Handa Vic Open, finishing two shots clear of New Zealander Ryan Fox. The victory continued a remarkable story of family success at 13th Beach Golf Club - his sister Minjee has twice won the women's section of the ISPS Handa Vic Open.

Held his nerve to win his maiden Rolex Series title with a brilliant play-off victory over Thomas Detry and Matt Fitzpatrick at the 2021 abrdn Scottish Open.

Bridged a two-and-a-half year gap between victories as he won his third DP World Tour title at the Fortinet Australian PGA Championship. It was his second professional victory on home soil and his second worldwide win in the space of four starts after winning the SJM Macao Open on the Asian Tour the month prior.

His victory came at the end of an excellent 2023 campaign after recording his first top five finish in a Major Championship at the U.S. Open, finished in a share of sixth on his debut appearance at THE PLAYERS Championship and took up dual-membership with the PGA TOUR for 2024.

Holds a GUINNESS WORLD RECORDS™ title for the ‘Fastest hole of golf by a team of four’ achieved a Real Club Valderrama in 2021.