Okeke competed at the 1987 European Junior Championships, the 1990 European Championships, the 1994 European Indoor Championships, the 2000 European Indoor Championships, the 2001 World Championships, the 2002 European Indoor Championships and the 2002 European Championships (interchangeably in the 60 metres, 100 metres, 200 metres or the 4x100 metres relay) without reaching the final round in any of the events.