<prompt> Qedela umusho olandelayo: UNiemann unqobe iMedali kaMark H. McCormack ka-2017 ngokuba ngumdlali osezingeni eliphakeme kakhulu ku-World Amateur Golf Ranking ekupheleni kwesizini ye-championship yasehlobo, ngaleyo ndlela ethola ukungena  <response>: I-U.S. Open ka-2018 kanye ne-Open Championship ka-2018. Unqobe i-2018 Latin America Amateur Championship futhi wangena futhi ku-2018 Masters Tournament. 