Thanks everyone, seems a really friendly race already - & we haven't even lined up yet! Stet, I feel the legs took a real pounding in London mainly through shifting left & right to get around people. I think that's why the cramps came on when I've never had that in 3 years of running. Like I say, recovered pretty well & have done a 2, a 4 & a 3m since. Am agreeing with you guys & will hopefully just do it, even if it's no pb it's still an achievement, and I do like a good medal!