American Fork Loop. My watch wasn't charged up so I left it home, but I started around 7 am and covered a little over ten miles (I've run this course many times in the past, but I don't remember exactly how far it is). I ran at a comfortable pace and never felt any significant pain or distress, although I seemed to have a little bit of an upset stomach about seven miles in. As it was fairly cool, I didn't bother stopping for water. My left achilles tendon bothered me just a little. | 