 Upon joining the club, Horwood was considered by local newspaper Hartlepool Mail as the club's first genuine left-back since Hugh Robertson.Horwood made his debut in the club's opening match of 2010–11, a 0–0 draw against Rochdale.It wasn't until on 31 August 2010 when he scored his first goal for the club, in a 4–0 win over Northampton Town in the first round of the EFL Trophy.