It was a short 20 mile loop in Oswego NY, it's mostly publicized as a running race but the cycling portion was pretty good. Talking to some of the guys after the race they said it was a strong Cat 4 pace. The break finished in 50 minutes while the second lead group (which I was in) finished in 52 minutes. It wasn't super hilly but it was definitely not flat.

www.10kanrun.com