http://www.theleafchronicle.com/view...Assault-School
A CPT with 3rd BDE, 101st ABN DIV broke the unofficial ruck march record at the Sabalauski Air Assault School with a 12 mile time of 1 hour and 37 minutes.
If my math is correct, that is almost an 8 minute mile. The article claims that the CPT said his achievement came from training with the Ft. Campbell 10 miler team and his personal marathon training.