I used to be a damn good 5k runner in high school. I still walked, but that was kid laziness. I'd get out ahead of the whole pack into the woods somewhere and stop and walk. My teammate who was better than me smoked on runs sometimes. That guy was something. He was like 5 feet tall, never came to practice, but could dance across the 5k course at near state-record speed. He was some kind of mutant or something.