Whakaotihia te rerenga e whai ake nei: I te 2012 U.S. Olympic Trials i Omaha, Nebraska, te hui tohu mo te kapa Olympic o U.S., ko McGill te tuarua i te huihuinga 100 mita butterfly me te waa 51.32 hēkona, kei muri noa atu i a Michael Phelps me Ryan Lochte. I te 2012 Summer Olympics i Rānana, i noho a McGill ki te tuaono o te
100 mita butterfly, me te whiwhi i te mētara koura i te kaukau i roto i nga whakaritenga mo te wikitoria o te kapa US i roto i te 4 × 100 mita medley relay.