That is why I thought it was useful to know how fast I ran at 14. I think I could have run 18:30 at 14 not having run before. The best all time at 25 whonus active and at race weight would break 15. I remember the first day of summer running my senior year. We went 6 miles at 6:30 pace and had several clyeless go along. A few couldnt walk the next day and when we laughed at them, they said they hadn't run before so they didn't know that it wasn't supposed to hurt that much. These low takent guys could have run sub 19 that day. These hugs are the type who end up with lifetime PRs of 16:30, not 12:40.