I have done both. One year at the NYC marathon I was running in the back of the pack and they ran out of gatorade. Not at mile 18 either... At mile THREE!! I think there must have been a problem that year because I've done the race 4 times and it's never happened before or after. But I learned my lesson!! From no on at NYC I will always wear my camelbak with my cytomax.

But at the Ironman I knew how well they stocked the aid stations, so I didn't bother. I'm telling you the aid stations in an IM are like a rolling buffet!! I snacked on grapes, pretzels, and chicken broth...

But yeah, in a running race that I wasn't sure about I would prolly come prepared. It really stinks to be without gatorade for 23 miles!!!