He is, along with BoxeR, NaDa, Iloveoov, and SAviOr, regarded as the fifth, final, and greatest of the Bonjwas, a title for players who dominated the Korean Brood War scene over long periods of time.

[9] In March 2008, he won both the GOMTV Star Invitational and the Bacchus OSL, defeating Song "Stork" Byung-goo in both finals.

He won his first StarCraft II major event in 2014, after winning Intel Extreme Masters Toronto.

[6] At that point in is career, he had a nearly 80% win rate in Brood War and had spent multiple years at the top of KeSPA's official rankings.

At the Olympic Stadium in Hanyang University, Seongdong-gu, Seoul on Friday, Lee defeated Cho Il-jang 3:1 in the final match-up of the KT GiGA Internet Afreeca Star League (ASL) season 4.

Lee won a substantial amount of money by achieving a milestone that he failed to make during his career as a professional gamer.

In April 2020, Lee announced that he would switch his race and play future seasons of ASL as Random, rather than as Terran.

By selecting Random as his race, Lee will have a one in three chance of playing either Protoss, Zerg, or Terran in any match.

[citation needed] Lee and other prominent gamers and streamers, such as Bisu, were caught up in a cryptocurrency scandal in 2021.