But knowing where you stand in relation to the average running speed in your age group could motivate you to adopt smarter—potentially faster—training habits. What’s the average running pace per mile per age group? Because of the many variables associated with running pace, it can be difficult to establish an across-the-board average running speed. If you’re looking to find out what your average running pace should be to hit a specific time goal in a race, you’re in luck. If you want your average running pace to be faster, there are several steps you can take to improve.