Svetlana Aleksandrovna Masterkova is a Russian former middle-distance runner and former women's world record holder for the mile and the current 1000 metres world record. At the 1996 Summer Olympics, she won the gold medal in both the 800 metres and 1500 metres. Svetlana Masterkova (Russia) set the women's mile world record of 4:12.56 in Zürich on August 14, 1996. It stood 22.9 years, until Sifan Hassan's 4:12.33 on July 12, 2019. Wiki link