Career
Su Hwan Lee made his K-1 MAX debut against Remigijus Morkevičius in 2005 at K-1 Fighting Network of Korea MAX 2005. Lee would return to action the following year at the K-1 Fighting Network KHAN 2006 in Busan where he would reach the final, losing to Chi Bin Lim by technical knockout and missing out at a place at the K-1 World MAX 2006 World Tournament Open. He would finish the year strongly, winning two Super Fights and go 4 and 1 for 2006.
2007 would be a successful year for Lee.
Lee faced Artur Kyshenko at this event but lost by knockout. His performance, however, earned him a Super Fight place at the K-1 World MAX 2007 World Final.
Su Hwan Lee had a disappointing 2008 - he could only make the semi finals at the K-1 Asia MAX 2008 in Seoul Asia Tournament losing to K. MAX by majority decision. In 2009 Lee managed to reach the final of the K-1 Award & MAX of Korea 2009 event, losing to nemesis Chi Bin Lim by knockout.
Despite his loss, Lee would be invited to the K-1 World MAX 2009 Final 16 as a reservist.
He was unable to proceed after being knocked out in devastating fashion by popular K-1 MAX veteran Gago Drago. On December 17, 2012, Lee faced Danilo Zanolini for the HEAT Middleweight (-70 kg) Championship but was knocked out in the second round. 2009 K-1 Award & Max of Korea runner up.