I wrote earlier about this nephew of mine who was 10.8 in the 100 and now he's at 10.57 and 48th in the US--I'm thinking he has to be one of the fastest white boys in America. His mom is about 5 feet tall and weighs in at around 230. His father, my brother, is 5' 9" and stout. I'm, naturally, a 4:30-ish miler, and was lucky to break 56 in the 400. I'm still just blown away by how this kid runs. Where in the hell did those genes come from?