Kammala jumla mai zuwa: Donohue a baya ya fara fitowa a cikin Formula One a ranar 19 ga Satumba, 1971, tare da McLaren da Penske ke tallafawa a Grand Prix na Kanada a Mosport Park, yana gamawa a kan podium a matsayi na uku. Bayan fitowa daga ritaya tare da tsohon maigidansa, Penske, Donohue ya koma Formula One, ya shiga tsere biyu na karshe na kakar 1974 Formula One. Donohue ya gama a matsayi na 12 a Grand Prix na Kanada, amma ya kasa gamawa a
Gasar Amurka.