What Ex said. Don't over think it!

In your age category - you're right there, I'd say it's pretty even. Andi Smith is strong, she rides with and for Cami Deluca, who is in 55-59. Cami is the class of that age group, with Helen Casabona and Yvonne Walbroehl very close to her. Look at their times, I have. You're very close to them over similar distances. Dusty Dustyn is riding your age group to ride twice. She's a solid distance rider, and last year she bested me (she aged up this year) by about what I expected, considering how my TT's were at that time. Once again - you are very much on terms with her.

Ride your race. Throw it down. Ride like you can. I would be very surprised to see that you didn't get on the podium, and I expect at the very least the second step. You'll do well!