Not really. I ran a half marathon while back. It's an experiment really. I feel like I surpassed all my PL goals, got a little burned out, so I asked myself what do i suck at and i decided I would run. I sprinted back in the day and distance running was always hard for me. I was willing to lose some size and strength to see how strong I could stay while running. I might run a marathon in April if i think i can run it under 4 hours but I'll switch back to PL eventually. I am having to eat everything in sight to keep from losing too much strength. This is a very counterproductive goal. My HDL and total cholesterol numbers look greAT though. lol