[2] On 24 October 2014, he lost to Arif Magomedov in his first fight outside Australia when challenging for the WBO Youth and Asia Pacific middleweight titles.

[6] On 22 April 2016, Zerafa defeated Yosuke Kirima for the IBF Pan Pacific middleweight title.

[7] On 5 November 2018, it was announced Zerafa would face Kell Brook at the Sheffield Arena on 8 December 2018, in a WBA super-welterweight title eliminator.

He then defeated Jeff Horn for the WBA Oceania middleweight title in Bendigo on 31 August 2019, this time winning via technical knockout.

[11] Zerafa was originally slated to fight Esquiva Falcão for the vacant IBF middleweight world title.