Rubuta ci gaba ga wannan sakin layi - Tsakanin nasararsa biyu a Boston, Miles ya lashe gasar zakarun Kanada na mita 10000 a 1928. Daga baya ya lashe lambar tagulla a tseren marathon a Wasannin Daular Burtaniya na 1930. Ya wakilci Kanada a wasannin Olympics na 1928 kuma ya gama 17th a 1928 Olympic marathon
Ka yi haƙuri. Shekaru hudu bayan haka a Wasannin Olympics na 1932 ya gama na 14 a tseren marathon na Olympics.