Kammala wannan jumla: Johnny Cecotto ya fara tsere a tseren motoci na Formula One tare da Theodore Racing a 1983 Brazilian Grand Prix. Ya ci maki kawai a gasar.
bayan tseren, duk da haka sa'a ba ta daɗe ba kamar yadda aka tilasta wa tawagar ta janye daga wasan kafin tseren karshe na kakar 1983. Cecotto ya sauka tare da Ayrton Senna a Toleman a shekarar 1984, amma ya kasance mai kammala karatun ne kawai a daya daga cikin tseren goma da ya halarta a wannan kakar. Fitowarsa ta ƙarshe ita ce Grand Prix ta Burtaniya ta 1984.