South Korean speed skater Lee Sang-hwa broke her own world record in the women's 500 meters for the second time in a week on Friday.

Lee won the women's 500 meters in 36-point-57 seconds at the second leg of the International Skating Union (ISU) Speed Skating World Cup, held in Salt Lake City, Utah, in the United States, beating China's Wang Beixing by 0-point-28 seconds. 

Lee finished 0-point-17 seconds faster than the first event in Calgary, Canada, last Saturday. 

Meanwhile, Mo Tae-beom fell and lost his chance to earn a medal at men's 500 meters in Salt Lake City.