I ran cross country in Highschool and track as well (the 1 and 2 mile races). I was never good though. Best mile time was 5:02 and best 5K was 17:58. I switched to minimalist running over a period of 6-8 months back in 2010-2011 (vibrams 5 fingers). I was a much better runner post switch. My knee pain went away, which primarily kept me from longer runs. Running minimalist over the next two years, I trained for and completed the Marine Corps Marathon (3:26), and Rosaryville 50K just 13 days later (4:02). I still prefer vibrams, although my preferred “low profile” shoe are the New Balance minimus.