The Winter Series is a series of four races in four different city and county locations.  The courses are mostly run on well-groomed dirt trails. The Black Forest courses are run on dirt and
paved country roads. 

This is a progressive series, meaning each run is longer than the previous one.  Each race consists of a short race and a long race.  The distances for
the short race series are 3.3M, 4M, 5M, 10K.  The distances for
the long race series are 7M, 8M, 10M, 20K. The series scoring is based on
cumulative time of all 4 races.

If you run all four races, you will be eligible for age group and overall awards.  Note: You must run all four short series races, or all four long series races to be eligible for awards.