Claim: Racewalking, in which one foot must appear to be in contact with the ground at all times, is a sport that Sweden's Siv Gustavsson has competed in.
Evidence: Although a foot race, it is different from running in that one foot must appear to be in contact with the ground at all times. Siv Gustavsson (born 9 July 1957) is a Swedish former racewalking athlete.