I'm just curious what people think is more of an accomplishment, a sub 17 5k or a sub 5 mile. In high school I always thought it was for sure sub 17, (everyone I knew who was sub 17 was in the 4:40s atleast). However, that could have been a combination of difficult cross country courses and poor aerobic development. For example, now, I have a pr of 16:48 in the 5k and 5:03 in the mile. I know more older runners with this trend.