Career
Coulton started his career at Arsenal but later signed for Barnet. He made his Barnet debut on 4 January 2011 aged just 18 in their 2–4 loss against Stevenage. He was released by Barnet at the end of the 2010-2011 season.
He signed for Leverstock Green for the 2012-2013 season.
After receiving the player of the season award, Coulton attracted interest from higher leagues and subsequently signed for Street Albans City after making his debut during the Hertfordshire Charity Cup final. During the 2015-2016 season he appeared for Street Albans City in the Hertfordshire Charity Cup away at Ware on 4 August 2015, Cockfosters, and for Barton Rovers home against Ware on 18 August 2015, before being signed by new Ware boss Ken Charlery in November 2015.