I usually do 1.5 mi. a little under 9 minutes (i'm 21).
Today at work I did a 5:44.....these are all on a treadmill as I don't have access to a track at work. I was still happy with it....however I didn't have much left in the tank after that one.
Side note: Last time I did the timed mile at work a week ago we had a structure fire....lets hope that is not a trend.