Hitchy,

It's the same in the states. Anything over 35 is classified as "Masters". I've been racing in the Masters 45+ category (first year of racing) and am happy if I come in mid-pack. Sometimes these guys will race down in age if they think the 45+ course and/or distance isn't tough enough. A fair number of them were Pros and Cat 1 racers in their prime. I'm thinking I should try a Cat 5 race and see if it's any easier.

SteveE