I agree with the poster above. I am doing Grandma's Marathon in Duluth as a training run for IM Wisconsin this fall, and I feel behind in my training because I have just been doing my long run (18 miles this weekend) on the weekend, and one or two 6-7 mile runs during the week.

If you are going to do it, do a run/walk strategy. Run 10 minutes, walk one minute. If you start feeling like crap, make it 7/1 or 5/1....

Good luck. Remember: "If you're gonna be stupid, ya gotta be tough!!!"