Pedzisa mutsara unotevera: Muna 2015 Doull akatamira kuchikwata chitsva chakagadzwa naBradley Wiggins nechinangwa chokugadzirira vatasvi veBritain nokuda kwe
chikwata chinotsvaka pa 2016 Summer Olympics, ichiramba kupihwa kuti ichinje kumakwikwi emugwagwa wenguva yakazara na. MunaGunyana 2015, Doull akapedza wechitatu pakupedzisira paTour yeBritain, uye akahwinawo mapoinzi. MunaNovember 2015 Doull akasimbisa kuti acharamba ari mu2016 mwaka, nepo muna Chivabvu 2016 zvakaziviswa kuti aizobatana nechibvumirano chemakore maviri kubva muna2017. Muna Nyamavhuvhu 2016, Doull akasaina seye stagiaire kune yakasara mwaka.