Kammala jumla mai zuwa: Kukkoaho ya lashe lambar yabo ta karshe ta kasa a shekarar 1976, inda ya lashe tseren mita 200 a lokacin da ya fi dacewa na 20.73; a wannan bazara, ya yi tseren mita 300 a cikin 33.2 don wani rikodin kasa wanda har yanzu yake. Ya koma gasar Olympics a 1976 da kuma gasar zakarun Turai a
1978, amma bai cancanci zuwa wasan karshe ba.