Rubuta ci gaba don wannan sakin layi - Carter ya cancanci zuwa wasannin Olympics uku a 1972, 1976 da 1980; Sakamakonsa mafi kyau shi ne matsayi na hudu a matsayin memba na tawagar maza na Birtaniya a cikin 4 × 100 mita medley relay a 1976. A matsayin memba na ƙungiyar relay na Burtaniya, ya sami lambar tagulla a cikin relay na 4x100-mita a gasar cin kofin duniya ta ruwa ta 1975 da kuma gasar cin kofin Turai ta ruwa ta 1977
Ka yi haƙuri. Ya kuma lashe lambar azurfa a tseren mita 1500 na kyauta a Gasar Wasannin Ruwa ta Turai ta 1974. A ASA National British Championships ya lashe 1973 da 1974 1500 mita kyauta lakabi, da 200 mita baya lakabi a 1976 da 1977, da 200 mita medley lakabi a 1976 da kuma 400 mita medley lakabi a 1974.