A gasar Olympics ta 2008 a Beijing, McGrath ya cancanci shiga tawagarsa ta biyu a Kanada, a matsayin dan shekara 32, a gasar Olympics ta Beijing.
tseren tseren maza ta hanyar karɓar ɗayan wurare uku na ƙasar daga Ƙungiyar Ƙwallon Ƙwallon Ƙwallon Ƙasar Kanada da Ƙungiyar Cycliste Internationale, bisa ga mafi kyawun aikinsa a gasar cin kofin duniya, gasar zakarun duniya, da kuma Mountain Bike World Series. McGrath ba zai iya daidaita wasan kwaikwayon tauraro daga Athens ba, kamar yadda ya sha wahala a taya taya sannan kuma ya hau rim din duk hanyar da ke kewaye da yankin fasaha don maye gurbin taya mai taya. Ganin cewa sabon keken sa yana dauke da kwararar hankali a wurin da aka tsara, McGrath ya yanke shawarar kawo karshen hanyar sa tare da sauran zagaye uku kawai kuma ya gama a matsayi na arba'in da hudu.