 Diniz akapinda muFormula One, chikamu chepamusoro-soro chemakwikwi emakwikwi anotsanangurwa neFédération Internationale de lAutomobile FIA, mutumbi wepasi rose unotonga motorsport, nechikwata cheForti, semumwe waRoberto Moreno muna 1995. Mukuwedzera, uyu wakanga uri wokutanga wechibvumirano chemakore matatu naDiniz nevatsigiri vake. Pasinei nokushaikwa kwake kubudirira muF3000, akavimbiswa chigaro sezvo mhuri yake nevatsigiri vakanga vachibhadhara mari yakawanda yebhajeti yeboka. Mukuwedzera, mutyairi akarega basa René Arnoux akashandiswa somupi wezano uye mutyairi womudzidzisi weDiniz. Mwaka wakatanga naDiniz achihwina katatu akateedzana, kunyangwe kunze kwenzvimbo dzekuwana mapoinzi asi haina kuiswa mumakwikwi muArgentina neSan Marino. Haana kupedza mujaho unotevera kuSpain nekuda kwechinetso chegiya bhokisi uye akapedza chegumi muMonaco. Diniz akarega kubva kumakwikwi mashanu akatevera aakapinda, kunyanya nekuda kwenyaya dzemotokari uye akaenda pamudyandigere kuMagny-Cours. Akazopedzisa mujaho wese wakasara wemwaka, kunze kweGrand Prix yakaitirwa kuSuzuka kwaakabuda. Akapedza mwaka asina kuwana mapoinzi uye akanga asina kuiswa muDrivers Championship. Nhoroondo yakanaka yaDiniz yokugumisa yakaita kuti akwanise kuzvisimbisa somutyairi anogara achityaira, akavimbika. Muna Zvita, Diniz akasainira timu yeLigier ye1996, kunyangwe muridzi wechikwata Tom Walkinshaw pakutanga akaramba kuita hurukuro nemutyairi weBrazil. Ligier pakupedzisira akasaina Diniz mushure mekupfura bvunzo yekupfura vachipesana nevamwe vatyairi umo Diniz aive akakurumidza, zvakare achifadza timu nemaitiro ake uye mhinduro yehunyanzvi. Pakupera kwemwaka, Diniz nevatsigiri vake vakatsanangurwa se kukanda mari yavo kure pane Forti isina kukwikwidza. Asi tapuro inokosha zvikuru yegore rake rokutanga muF1 yakanga iri yokuti muBrazil akanga asina kuita chinhu kuti adzikamise vatsoropodzi avo vakanga vati akanga ari mutyairi anobhadharwa. Zvakamutorera makore anoverengeka kuti aratidze kuti akanga asiri mumutambo bedzi nemhaka yemari yake. 