Claudia Ștef, née Iovan (born 25 February 1978 in Craiova, Romania) is a Romanian women's professional race walker. Ștef holds the world indoor record for 3000 metres track walk with 11:40.33 minutes, achieved in January 1999 in Bucharest. Doping She tested positive for nandrolone in an out-of-competition test on 20 May 2000 and received a two-year doping ban. Achievements See also List of doping cases in athletics References External links 1978 births Living people Romanian female racewalkers Doping cases in athletics Romanian sportspeople in doping cases Athletes (track and field) at the 2012 Summer Olympics Athletes (track and field) at the 2016 Summer Olympics Olympic athletes of Romania World Athletics Championships athletes for Romania World Athletics indoor record holders Universiade medalists in athletics (track and field) Universiade gold medalists for Romania Medalists at the 1999 Summer Universiade