Claim: Natalya Serbinenko, a Ukrainian former racewalker, participated in seven international competitions from 1981-1993.
Evidence: Natalya Serbinenko (née Sharipova; born 27 January 1959) is a Ukrainian former racewalker. 1981 IAAF World Race Walking Cup 1983 IAAF World Race Walking Cup 1985 Universiade IAAF World Race Walking Cup 1987 IAAF World Race Walking Cup 1989 IAAF World Race Walking Cup 1993 IAAF World Race Walking Cup