I can run it in a little under 6 minutes. I am 47 years old. I weigh 185 at 5'8". If I went down to 175 I'm sure I could get to the low 5's. Running is a good indicator of function. I love bodybuilding but to much emphasis is on cosmetics over function. I wouldn't be happy with big lifts without having cadio endurance and I wouldn't be happy being a cardio animal without strength.