He is a product of Swindon Town's relatively successful youth set-up which has also seen Matt Bullman, Michael Pook, Andy Caton, David Stroud, Leigh Henry, Ben Wells all attempting to break into the senior squad.
Holgate first came into the attention of Swindon fans with an impressive goal against Millwall during a friendly in 2004.
Holgate is a striker who can also play as an attacking midfielder and featured in a handful of games for the Swindon first team including 2 starts against Colchester United and Swansea City during the 2005-06 season which ended in relegation for the club.
Holgate went out on loan to Salisbury City to gain experience before returning and signing a new contract with the Robins and being loaned to Newport County.
There were rumours that Holgate was due to join Macclesfield Town in the January 2007 transfer window. He has since joined the club on loan. However in May 2007, Swindon boss Paul Sturrock released Holgate as he felt that the striker/midfielder would not feature in his plans.
He was then signed by Conference South side Weston-super-Mare by new manager Tony Ricketts at the start of the 2007-08 campaign. He was in fine form, starting 14 times and finding the back of the net four times before he was transferred to Conference South rivals, Eastleigh in November 2007.
Holgate made his first appearance for Eastleigh on 1 December 2007. However, Eastleigh sent Holgate on loan to Southern Football League Premier Division side Cirencester Town, whom he played his first match for on 9 February 2008. His last match on loan came on 1 March 2008 with Holgate returning to Eastleigh afterward. He was soon transferred back to his first club of the season, Weston-super-Mare, on 7 March 2008 and was inserted into the first team straightaway.
Holgate rejoined Newport County on a permanent contract on 13 October 2009. However, his contract at Newport was terminated by mutual consent 22 January 2010. Holgate signed for Southern Football League Premier Division club Swindon Supermarine on 27 February 2010.