Mezue ahịrịokwu na-esonụ: Rolt gbara asọmpi atọ nke Formula One World Championship, British Grands Prix nke 1950, 1953, na 1955, mana ọpụpụ atọ ahụ kwụsịrị na ezumike nká. Na
1950 British Grand Prix, agba mbụ nke F1 World Championship, ọ malitere 10th na grid na ERA nke Peter Walker tozuru oke, mana gearbox mebiri mgbe agba anọ gasịrị. N'ọsọ nke 1953, ọ maliteghachiri site na 10th, mana ọkara ọkara na Connaught ya dara mgbe 70 lap. Na Grand Prix ikpeazụ ya, ya na Walker na-agbakọkwa n'otu ụgbọala n'afọ 1955. N'ihe ga-abụ njem F1 ikpeazụ maka ndị ọkwọ ụgbọala abụọ ahụ: Connaught ha malitere na 14th wee laa ezumike nká na nsogbu nnyefe mgbe 18 laps gasịrị. Stirling Moss na-ekwusi ike na Rolt gaara eso n'etiti ndị ọkwọ ụgbọ ala GP kachasị elu, ma ọ bụrụ na ọ na-agba ọsọ mgbe niile.