<prompt> Niemann akahwina 2017 Mark H. McCormack Medal nokuti ari pamusoro-rakava mutambi mu World Amateur Golf Ranking panguva mhedziso zhizha kuti Championship mwaka, nokudaro kuwana kupinda muna 2018 U.S. Open  <response>: uye kupinda mu2018 Open Championship. Akakunda 2018 Latin America Amateur Championship achiwana kupinda zvakare mu2018 Masters Tournament. 