I agree with red eyes you can make more miles. I was curious on the pure same day run from and to the same destination. :-)
Enjoy your trip gfb! I was a 2 hour drive from BWI so that added to my trip and added to my tiredness. Fortunately I had another flyertalk member join me that made the trip much more bearable. After landing at the end of a very long day we hit the Maryland Live casino for dinner and a little gambling where unfortunately we didn't hit it big!