Great Race, one of my favorites. Its actually the only race that I have done every year as an end of season race since 2005.
My advice would be to ride the bike course a few times if its possible. It is hilly but it is fast. Altheus in Rye is hosting group rides on Sunday morning. I used to work there and they always had a pretty good turnout for the rides but I am yet to get to one this year.
Good luck with the massage. Last week there were 70 people there for the training ride. I used to work there and got a call yesterday asking if I could lead some groups bc they had so many people.