No break or break wrote:
How do you pee during a marathon?
You shouldn't have to, once you get a handle on hydration:
Drink plenty of water for the DAYS before a marathon, not just the final hours. The night before, not the morning of, is the key time. If you are properly hydrated, on race morning you shouldn't need more than 500-750mL (16-20oz) of water or whatever drink you use, aka a medium-sized Gatorade bottle. If you can urinate within the last 30 minutes before the race there shouldn't be any reason you'd excrete enough into your bladder to require urinating within 2-3 hours.
Come on, it's the length of a long movie, and you are going for a PR!
Pooping, on the other hand...