If you feel that putting in a couple miles on the road sucks, maybe it's your perception. Do yourself a favor and visit Dean Karnazes web site: www.ultramarathonman.com. I was perusing the bookstore today and came across his most recent book, titled "50/50: Secrets I Learned Running 50 Marathons in 50 Day...". I read his previous book, "Ultramarathon Man: Confessions of an All-Night Runner", which is a pretty cool book to check out. The dude is an inspiration and may encourage you to change the way you view your running, I know it was a good reminder for me. 13.1 miles ain't so bad...