re: Anyone on here ever ran or tried to run a marathon?

I've ran a few marathons and done an Ironman. The marathons weren't bad, but in the IM's last 5 miles my legs cramped up so bad I wasn't sure I'd be even be able to walk across the finish line. Worst cramps I've ever experienced. Stopped at every aid station during that last five miles and downed at least 10 gallons of gatorade.