Sumie Inagaki

Sumie Inagaki, born on 6 April 1966, is a Japanese ultramarathon runner from Hokkaido. She holds the women's world record for the 24-hour run indoors, 240.631 kilometres set in Espoo, Finland in January 2011, and for the 48-hour run on a track, 397.103 kilometres set in Surgeres, France in May 2010. She is a two-time female winner of the IAU 24-Hour Run World Championship, won the Spartathlon in 2006 and 2009, and was the female winner of the Badwater Ultramarathon in 2011 and 2012.