I've been thinking about trying out my first race sometime soon. I'm wondering whether I would be able to keep up with cat 5s. Going solo, I can average 20mph on a 21 mile ride with about 1000 ft of elevation gain, and 19 mph on a 45 mile ride also with 1000 ft of elevation gain. Having never raced before, I'm just curious whether I'm likely to be able to stay with the group in a cat 5 race.
Thanks in advance for the input.