[2] McIntosh's first professional fight took place in April 2005 at the Sports Village in Norwich and resulted in a six-round points victory over Omid Bourzo.

McIntosh has since made two defences of the belt beating Nottingham's Rod Anderton on 6 December 2008[3] and Southampton's Matthew Barney on 28 March 2009.

The fight, on the undercard of a Ricky Hatton promoted bill, saw him retain the title with a 2nd round stoppage over former British champion Tony Oakey.

[6] McIntosh stepped up to cruiserweight in his next fight at the Castle Leisure Center in Bury on 6 November 2010 beating journeyman Hastings Rasani in the 3rd round of what was a non-title contest.

[8] The first defence of the title was, however, to end in defeat when on 7 May 2011 McIntosh traveling to Germany to defend against local boxer Eduard Gutknecht, losing in the 8th round.