Kammala jumla mai zuwa: Aikinsa ya ci gaba tare da cin nasara a kan manyan masu fafatawa na ranar, kamar Fireman Jim Flynn, Alfred "Soja" Kearns, Arthur Pelkey da Ed "Gunboat" Smith. Tsakanin Oktoba 1915 da Janairu 1916, sau biyu ya yi yaƙi da Frank Moran a
Madison Square Garden, tare da karo na biyu kasancewar mai fitarwa ga wanda zai ci gaba da kalubalanci sabon zakaran duniya mai nauyi Jess Willard. Abin takaici ga Coffey, Moran ya lashe gasar biyu.