Is anyone allowed to enter the events on the website?
You need to be a member of a CTT affiliated club to ride CTT events, with few exceptions. You probably won't get a ride on the E2 without a pretty good qualifying time from a previous event.
Apart from triathlons, I've only ever entered a 10mile TT in Richmond park about a year ago. Can't remember what club organised it (or how I managed to enter it) but I completed it in 29:08
You need to be a member of a CTT affiliated club to ride CTT events, with few exceptions. You probably won't get a ride on the E2 without a pretty good qualifying time from a previous event.