Details:
"The third event in the 2009-2010 Chilly Cheeks Winter Duathlon Series.
This low key series offers three run-bike events at Denvers Cherry Creek State Park during the winter months.
Each event features a different formt, eovering approximately 4 miles of running and 10 miles of biking.
The February event start with a 10 mile paved bike ride, followed by a 4 mile run.
Road and Fat Tire divisions are offered."