Wrexham were held to a 0-0 draw by Harrogate Town but Phil Parkinson was impressed with the impact Luke Bolton made off the bench. Wrexham faced play-off chasers Harrogate on Tuesday night looking to make it three consecutive wins in a row. The Reds were coming up against a side that boasted the second-strongest away record in the division, and so it proved. Phil Parkinson’s men struggled to break down such a strong and resilient set-up, registering 17 shots on goal and 62% possession without having any goals to show for it. Despite failing to find a breakthrough, the biggest disappointment fo…