<prompt> Pedzisa mutsara unotevera: Pamitambo yeOlympic yeZhizha ya2008 muBeijing, McGrath akakwanisa kupinda muchikwata chake chechipiri cheCanada, semukuru ane makore 32, mu  <response>: nhangemutange yevarume yekumhanya-mhanya nekugamuchira imwe yenzvimbo nhatu dziripo dzenyika kubva kuCanada Cycling Association neUnion Cycliste Internationale, zvichibva pane zvaakaita zvakanakisa paWorld Cup series, World Championships, uye Mountain Biking World Series. McGrath haana kukwanisa kuenzanisa kuita kwenyeredzi kubva kuAthens, sezvo akatambura nekuputika kwevhiri uye ipapo aifanira kukwira rim yose nzira yakapoteredza tech tech kuitira kuti atsive vhiri rakaputika. Achiziva kuti vhiri rake idzva raiva nerinoyerera zvishoma nezvishoma panzvimbo yakatarwa, McGrath akasarudza kugumisa nhangemutange yake kwasara mavhiri matatu chete uye akapedza ari panzvimbo yechimakumi mana nemana. 