Education
He reached the final of 200 metres at the 1984 Olympic Games, where he finished eighth.
He reached the final of 200 metres at the 1984 Olympic Games, where he finished eighth.
He is currently unemployed and has previously worked for Chelsea, Millwall, Milton Keynes Dons, West Bromwich Albion and Watford. Mafe and his teammates Darren Braithwaite, Linford Christie and John Regis ran a time of 1:22.11, which has yet to be bettered. Mafe and Marcus Adam, Linford Christie and John Regis set a time of 1:22.99 in Birmingham on 23 June 1989.
In July 2008, Roberto Di Matteo was appointed as the new manager of the Milton Keynes Dons new manager after Paul Ince left to become Blackburn Rovers boss, and Mafe was appointed fitness coach at MK Dons to work alongside Di Matteo and his assistant Eddie Newton.
Mafe followed Di Matteo to West Bromwich Albion in June 2009. On 6 February 2011, Mafe left West Bromwich Albion when Roberto Di Matteo was relieved of his duties at the club
Mafe joined the coaching staff at Watford F.C. in October 2012, linking up with Gianfranco Zola whom he knew from his time at Chelsea. He left Watford in July 2013.
Mafe is a member of the British team which set the world indoor record for the rarely contested 4 x 200 metres relay on 3 March 1991 in Glasgow. Mafe is also a member of the team which holds the British outdoor record for the 4 x 200 metres relay.