I'm not much of a racer, but there is one race in CT that I have done several times - the Scantic Spring Splash downriver race. Its a 5-mile race - mostly quickwater with 4 class II+ (maybe III) rapids in the second half. I've done it many times in my solo boat, so this year decided to try it in my tandem. The water was low, so we spent most of our time scraping on the bottom and bouncing off rocks. It was still fun. Here is the 3-minute version of the trip.
We came in second (in a class of two).
We came in second (in a class of two).