Ku sii wad qodobkan - 2011 wuxuu arkay Harrison oo horumar ka sameynaaya heer sare. Wuxuu ku guuleystay tartankiisii ugu horreeyay ee tartanka Koobka Adduunka ee UCI Track ee Beijing, isagoo ku guuleystay omnium. Harrison ayaa markii ugu horeysay ka soo muuqday tartanka UCI World Track Championships sanadkii 2011
, kaas oo uu ku guuleystay billad naxaas ah oo qayb ka ah Raadinta Kooxda. Waxaa loo doortay finalka ka dib markii xiddiga caadiga ah ee Ed Clancy xanuunsaday. Harrison ayaa sidoo kale kaalinta 11-aad ka galay tartanka.