Kammala wannan jumla: PC1 ya fara zama a 1974 Kanada Grand Prix tare da Donohue ya cancanci 24th kuma ya gama 12th. Donohue ya yi ritaya daga tseren gidansa da na Penske a tseren na gaba
1974 United States Grand Prix da aka gudanar a Watkins Glen bayan ya cancanci 14th, ya kasa gama tseren saboda rashin nasarar dakatarwa na baya.