Parslow missed the start of 2007–08 with an ankle injury, making his first appearance in York's third match, a 1–1 draw away to Exeter City on 20 August 2007. He established himself in the team under Walker, starting all of York's remaining matches in 2007–08. Parslow scored his first career goal with the only goal in a 1–0 away win over Rushden & Diamonds in the fourth round of the FA Trophy on 23 February 2008, which came from a diving header eight yards out in the 16th minute. He made 40 appearances and scored two goals in 2007–08,