Good luck this weekend Denise!!! I know it'll feel good to get out there in the lake again. This time the distance will be so short you'll feel like you just got warmed up when you're all done.

Sorry about the woman being so judgemental. She shouldn't have assumed that you were doing the 5K for ANY reason (and shame on her for judging your book by it's cover). You ARE an Ironman, and damn all the people who think triathletes are rail thin. We "thicker" triathletes are just as capable and worthy of the title as anyone. And like you said- you gotta race in the body God gave you. Well, I wish he gave me 5 more inches in height and 20 less pounds, but you make do with what you have. And you have A LOT of powerful, shake and bakin' muscles (and I'm right there with you, sister).
Next time, look over her and say "are you doing the 5K tomorrow, cuz you look like you'd be a fast walker yourself."