In fact , I think I 've only ran 18 miles once ( on a treadmill ) outside of a marathon .
Again , stupid , and probably why I am so injury - prone ( that and because I never strength train ) .
I think I 've only ran 18 miles once ( on a treadmill ) outside of a marathon .
Again , stupid , and probably why I am so injury - prone ( that and because I never strength train ) .