I'll admit being a bit surprised when I didn't see your name at the top of the result list. It sure doesn't sound like your normal race. I'd say nutrition probably had a lot to do with it. That said, usually after I've had a race with a complete bonk like that I'd be sick shortly afterwards. Whether or not it was a result or a cause of the effort, has always nagged at me. Hopefully you'll escape being sick-(flu-like). I'm sure you'll be back at the top soon!
Thanks Phil. Still can't quite fathom it. Bonking after 20 mins? No flu develoepd since, so am running out of ideas. Will just chalk it up to experience :-). The regionale season is starting soon in Ile de France, so that should be fun.
Hope you had a good summer.