The TFCE Century (The Flattest Century in The East) is officialy out of Tiverton, RI. However, due to poor parking for thousands of cars and what goes with it, the Narragansett Bay Wheelmen Club (NBW) moved it last year to the UMASS- Dartmouth campus, not too far from the RI border as the starting point.

This ride fills up early - Like, by May/June. I know that registration has been closed since that time. However, the club offers many other rides and has other century and Metric routes planned. The rides are all open to the public and you can browse their website for rides and events at http://nbwclub.org/.