My inlaws are in town and asked me about my cycling. I was trying to explain the whole notion of racing Categories and got some blank stares. They finally said "so how many Cat3s are there in the US?" which I could not answer.
I think there are something on the order of 50000 USA Cycling registered racers. I thought someone posted some data as to the Cat-specific breakdowns but I can't seem to find it. Can anyone help with this?