Are there American records for Clydesdales and such? A guy I work with said he ran a 15:00 5k when he was in the Marines and weighed 240 lbs. He's obviously lying or mistaken, and he brings it up often thinking he's cool. I'd love to show him on paper that he achieved an unrecorded American or World record, maybe he'd think twice about his so-called achievements. As a 14:40 guy, he gets under my skin.