That is a fantastic time. I have only ever pulled sub 20 minutes once for a 5K as most of the time it is just LSD for me. Incredible pace. If I did my math right that is a 1:39 500 10 times in a row. Solid!
What we think, or what we know, or what we believe, is in the end, of little consequence. The only thing of consequence is what we do. -John Ruskin