In the 2015/16 season, Lee made four podiums in the European Cup. He won the parallel slalom in Ratschings and at the end of the season he won the parallel classification and also came second in the parallel slalom classification and in the parallel giant slalom classification. At the Winter Asian Games 2017 in Sapporo , he won the gold medal in slalom and giant slalom. In March 2017 in Kayseri he achieved his first podium finish in the World Cup with second place in the parallel giant slalom and at the end of the 2016/17 season he finished fifth in the parallel and parallel giant slalom World Cups. At the season highlight of the 2017 Snowboard World Championships in Sierra Nevada , he came in 19th place in the parallel slalom and fifth in the parallel giant slalom. At the 2018 Winter Olympics in Pyeongchang , he won the silver medal in the parallel giant slalom. In the 2018/19 season he came in 12 World Cup starts, four times in the top ten, including third place in the parallel giant slalom in Pyeongchang and thus achieved 15th place in the parallel world cup. At the season highlight, the Snowboard World Championships 2019 in Park City , he finished 31st in the parallel giant slalom. At the beginning of March 2019, he won the bronze medal in the parallel slalom at the Winter Universiade in Krasnoyarsk .
Sang-ho has started in 50 world cup races so far. He achieved a top 10 placement 18 times (as of the end of the 2019/20 season).
Note: This article places the family name before the person's first name. This is the usual order in Korean. Lee is the family name here, Sang-ho is the first name.