Kammala wannan jumlar: Hartley ya fara gasar Formula One a Toro Rosso a
2017 United States Grand Prix, wanda ya maye gurbin Pierre Gasly, wanda ba ya halarta don shiga zagaye na karshe na Gasar Super Formula ta Japan; ya yi tsere da lamba 39. Ya cancanci matsayi na 17 bayan an cire shi a lokacin Gasar 1, amma ya fara daga matsayi na 19 saboda hukuncin injin. Ya gama tseren a matsayi na 13, zagaye daya baya ga wanda ya lashe tseren Lewis Hamilton. An tabbatar a ranar 26 ga Oktoba cewa Hartley zai ci gaba da zama direba na Toro Rosso har zuwa karshen kakar, ya maye gurbin Daniil Kvyat, kuma ya zaɓi 28 (lambar da Will Stevens ya yi amfani da ita a baya a shekarar 2015) a matsayin lambar tserensa ta dindindin.