Ku dhameystir weedha soo socota:
1950 Swiss Grand Prix, oo dhammeystiray 11-aad, oo si kooban u hogaamiyay tartanka Formula One ee aan ka tirsanayn horyaalka ee Circuit des Nations ee Geneva ee Simca-Gordini. Wuxuu dhaliyay tiro ka mid ah lixda kaalinta ugu sareysa ee tartamada kale ee yaryar, dhammaadkiisii ugu fiicnaa wuxuu ahaa kaalinta afaraad ee tartankii Formula Two ee Aix les Bains Circuit du Lac, ka hor inta uusan galin tartanka Grand Prix oo uu ku dhammeeyay kaalinta 10aad. Branca wuxuu sii waday inuu tartamo 1951, isaga oo ka fariistay Formula One wuxuuna dhammeeyay kaalinta lixaad ee horyaalka Pescara Grand Prix, laakiin wuxuu dhammeeyey tartanka Grand Prix tartanka dhamaadka sanadka.