Rubuta ci gaba ga wannan sakin layi - Ya buga wasan farko na PGA Tour a gasar zakarun Valspar ta 2015, ya rasa yanke. A matsayin McCormack mai nasara, ya sami 'yanci a cikin 2015 US Open
da kuma 2015 Open Championship, bayan da ya juya masu sana'a. Ya fara wasan sa na farko a gasar 2015 RBC Canadian Open.