Kammala jumla mai zuwa: Rolt ya yi gasa a cikin tseren Gasar Cin Kofin Duniya guda uku, Gasar Burtaniya ta 1950, 1953, &amp; 1955, amma duka tafiye-tafiye uku sun ƙare a ritaya. A cikin
1950 British Grand Prix, zagaye na farko na gasar cin kofin duniya ta F1, ya fara 10th a grid a cikin ERA wanda Peter Walker ya cancanta, amma gearbox ya lalace bayan zagaye hudu. A tseren 1953, ya sake farawa daga 10th, amma rabin shaft a kan Connaught ya kasa bayan 70 laps. A cikin Grand Prix na karshe, ya sake raba motar tare da Walker a shekarar 1955. A cikin abin da zai zama na karshe F1 fita ga duka direbobi: su Connaught fara 14th kuma ya yi ritaya tare da watsa matsala bayan 18 laps. Stirling Moss ya tabbatar da cewa Rolt zai kasance cikin manyan direbobin GP, idan ya yi tsere a kai a kai.