He began life with Crewe Alexandra in 2003 where he stayed for two years, before signing youth forms with the old Chester City.
He signed professional terms with Chester in 2006 and went on to score four goals in just under 50 league games. In 2008 he joined Cambridge United netting 22 times in his 60 appearances.
His next port of call was Brighton & Hove Albion in 2010 but made just a handful of appearances and was loaned out to Stevenage and Bury.
Further spells in the Football League with Rotherham United and Preston North End and he was loaned out to Macclesfield Town in 2013. After a brief time with Morecambe he joined the Silkmen on a permanent deal.
He had a successful spell with Macclesfield making over 150 appearances scoring 23 goals but in the summer of 2017 he opted to sign for Wrexham on a one-year deal.
The forward made his debut on the opening day of the season against former club Macclesfield but was forced off in the first half with injury, delaying his next appearance until mid-September.
His first goal for the club was one to remember as 10-man Wrexham battled against rivals Tranmere Rovers at Prenton Park, with Holroyd popping up to score a superb volley to hand the Dragons a famous victory.
He’d go on to score braces against Leyton Orient and Ebbsfleet United before grabbing a hatrick against Torquay United.
During his first season Holroyd ended the season as Wrexham’s top scorer with 13 and was handed a new 1-year deal by Sam Ricketts in the summer of 2018.