<prompt> Pedzisa mutsara unotevera: Niemann akahwina 2017 Mark H. McCormack Medal yekuve mutambi wepamusoro-soro muWorld Amateur Golf Ranking pakupera kwemakwikwi emwaka wezhizha, nekudaro achiwana kupinda mu  <response>: 2018 U.S. Open uye kupinda mu2018 Open Championship. Akakunda 2018 Latin America Amateur Championship achiwana kupinda zvakare mu2018 Masters Tournament. 