On 24 April 2001 Hobson challenged South African fighter Sebastiaan Rothmann at the Olympia in Liverpool for the WBU Cruiserweight title.
[1] Following the Rothmann defeat, Hobson took on Germany's future WBA world champion Firat Arslan at the Barnsley Metrodome Arena and was again stopped, this time on cuts in the seventh round.
Following the win over Scott and his subsequent break from the ring, Hobson returned to action on 4 March 2006 to challenge Enzo Maccarinelli for the WBU cruiserweight title in a fight that was the chief support to Joe Calzaghe's destruction of Jeff Lacy at the MEN Arena in Manchester.
[2] The Keeton defence followed before, on 8 September 2006, Hobson challenged for the WBU title at the third time of asking, defeating Pavol Polakovic at the Grosvenor House Hotel in Mayfair, London.
The fight on 29 September 2007 at the Hallam FM Arena in Sheffield ended in victory for Hobson once more, allowing him to retire from the sport as a British champion.