Kammala jumla mai zuwa: Niemann ya lashe lambar yabo ta Mark H. McCormack ta 2017 saboda kasancewa dan wasan da ya fi dacewa a cikin Gidan Gidan Gida na Duniya a ƙarshen kakar wasan bazara, don haka ya shiga cikin
2018 US Open da kuma cikin 2018 Open Championship. Ya lashe Gasar Zakarun Latin Amurka ta 2018 kuma ya shiga gasar Masters ta 2018.