Early this summer I was running daily and increasing my distance and trying my hardest to get faster - even doing "speed laps" at the track to try to train myself to run at a faster pace. Nothing worked. I ran the same pace whether I did 3 miles or 10 miles (like, to the second NO MATTER WHAT). It was really frustrating.
Then I took a break for 2 months (moved to Manhattan and started working), and I thought I'd be worse. But I started running on a once every 3 days schedule, did the elliptical one of the other two days, and swam the other day. I was running much shorter distances than I ever had (usually 3 miles max, where I used to run 6-8 daily), but I signed up for a 5 mile race figuring it would be a good challenge and still doable. To my surprise, I beat my old 5 mile race times by 5 minutes, or a full minute off my pace! I was thrilled, and when I mentioned it to someone, they said cross-training was amazing, and also that the breathing in swimming helps with running.
Good luck!



)at the first half mile. The biggest issue was my playlist. When I was listening to a book or news show on the iPod, I did well. When I listened to some rockin' tunes, I was exhausting myself. 
I don't think I've ever beat him at ANYthing!