In December 2004, the year she turned 15, she made her senior international debut at the World Cup in Nagano, Japan. In 2005, she won the 500 m at the World Junior Championships and, less than a month later, took bronze in the 500 m at the World Single Distances Championships. In 2006, she placed fifth in the 500 m at the Turin Winter Olympics. In 2007, ahead of entering the Korea National Sport University, she won gold in the 500 m at the Turin Winter Universiade.
The breakthrough yearIn January 2010, the year she turned 21, she became the first Korean woman to win the overall title at the World Sprint Championships. The next month she won the 500 m at the Vancouver Winter Olympics, beating the world-record holder Jenny Wolf by 0.05 seconds, for the first Olympic gold by a Korean woman speed skater.
In 2011, she won bronze in the 500 m at the Astana-Almaty Asian Winter Games. In 2012, she won the 500 m at the World Single Distances Championships in Heerenveen, the first Korean woman to take the title.
In January 2013, she set a world record of 36.80 in Calgary, and in March she won the 500 m at the World Single Distances Championships in Sochi for a second straight title. In November she moved between Calgary and Salt Lake City and broke the world record three more times, down to 36.36. In 2014, the year she turned 25, she won the 500 m at the Sochi Winter Olympics with an Olympic record, her second straight Olympic title.
In 2016, she won the 500 m at the World Single Distances Championships for the first time in three years. In 2017, she won silver at the World Single Distances Championships in Gangneung, a Pyeongchang Olympics test event, and silver again at the Sapporo Asian Winter Games.
In 2018, the year she turned 29, she won silver in the 500 m at the Pyeongchang Winter Olympics, becoming the first Asian to win Olympic medals in the event in three straight Games. In May 2019, she held a retirement press conference, ending a 17-year career as an athlete. That October she married the singer Kangnam.
After retiring she moved into broadcasting, debuting as a KBS speed skating commentator at the Beijing Winter Olympics. In March of that year she became a regular on E Channel’s variety show Sporty Sisters 2. In 2024, she showed her face for the first time on Kangnam’s YouTube channel, which had passed 800,000 subscribers. In November 2025, she lost the 500 m world record she had held for 12 years to Femke Kok of the Netherlands.
Lee Sang-hwa (born Feb 25, 1989) made her senior debut at the World Cup in Nagano, Japan, on Dec 4, 2004, the year she turned 15, and became known when she won the 500 m at the Vancouver Winter Olympics on Feb 17, 2010, the year she turned 21, the first Olympic gold for a Korean woman speed skater. In 2013, she set a 500 m world record of 36.36.
Ages are by calendar year (the year minus the birth year), birthdays aside.