Kammala jumla mai zuwa: Tun 2017, Hoshino ya taka leda a babban Gasar Golf ta Japan. Nasara ta farko ta zo ne a watan Satumbar 2018 a Fujisankei Classic wanda ya ci nasara da bugun jini 5. Tare da ƙarin takwas na saman 10 ya gama 2018 a matsayin na 6 mafi yawan kuɗi a kan yawon shakatawa. Hoshino ya cancanci shiga gasar
2018 US Open, babban wasansa na farko, inda ya rasa yankewa.