Chilly Willy old

Are you ready to beat old man winter?  Join Silver Circle Sports Events for Wisconsin's Chilly Willy Winter Run Series.  Six races during everyone's favorite time of the year - winter!  Choose from a winter 5K distance or 1/2 marathon. 

The Wisconsin Chilly Willy Winter Run Series is comprised of six 5K races.  At the Last Call & First Call race, there is an option to run a 1/2 marathon.  When registering for the series, you will have the option of choosing to run either of the 1/2's at no additional charge.

Series Pricing

Through September $160
October $175
November $185
Race Day $200
Virtual $125

Run Virtually

Can't make the series or live someplace warm??? You can still participate in the Chilly Willy Run Series.  All you have to do is sign up for the Virtual Chilly Willy Run Series and we will send you the race shirts and finisher medals.  Sorry series runners we can't mix regular & virtual races. 

Series Registration Includes

  • Entry into all 6 races (5K or 1/2 marathon distances)
  • Custom Chilly Willy running hat and gloves
  • $15 off a purchase of shoes at Fleet Feet Brookfield
  • All the SWAG from each race
  • Random gift certificates from Fleet Feet Brookfield & Silver Circle Sports Events
  • A professionally run event by one of Wisconsin's largest race companies
  • Chip timed event by Silver Circle Sports Events
  • Kids can race the kid's race for free
  • Finishers medal

Kiddos Race for FREE

There will be a Kids 1K run (under 10).  All kids will get a bib just like Mom & Dad.  The race is FREE for the kiddos if mom or dad is registered and you can register on line at no charge.  Sorry no shirts for the kiddos but they can be purchased on line during registration. 

Race Schedule Date    
Milwaukee's Great Gobble Wobble 5K November 24 Register | More Info Results
Last Call 5K & 1/2 Marathon December 4 Register | More Info Results
Waukesha Janboree Frosty 5K January 21  Register | More Info Results
Flannel 5K February 25 Register | More Info Results
Shake Your Shamrocks 5K & 2 mile walk March 18  Register | More Info Results
First Call 5K & 1/2 Marathon  April 9 Register | More Info Results
Series Registration   Register | More Info  

Must participate in 4 races to be eligible for 5K series awards.  If runners participate in the half marathons during the Last Call and First Call, they will be allocated 5 points regardless of their placement in the half marathon.   Series rules.


The race is chip timed by Silver Circle Sports Events, LLC.


We need volunteers for everything from goody bag stuffing to course marshals. If you or your group have an interest in volunteering, we would greatly appreciate the assistance.  All volunteers can run a future race at no charge.

Weather / Refund Policy: 

Refunds are not permitted for any reason.

The event will be held unless severe weather occurs. In the event of severe weather, the race director may delay or cancel the event.  If the event is canceled, there will be no refunds. Silver Circle Sports Events has a NO REFUND policy.

The Wisconsin Chilly Willy Run Series is presented by:

Series standings

If you find a discrepency on the results please contact us and let us know.


As part of our effort to increase awareness of run local / buy local, we have created the Chilly Willy Running Team Challenge.  The goal is to increase awareness of local running managers (hey that’s us), local running stores (hey that’s where you shop) and local running teams (hey that’s all of us) in a fun and competitive format.  More Info

Team Standings

Team Gobble Wobble Last Call Frosty 5K Flannel 5K Shake Your Shamrocks First Call Total
Fleet Feet 7 11 10 9     37
Silver Circle 19 7 11 7     44
Endurance House 8 7 6 0     21
InStep 0 7 6 9     22
Cool Runners 35 11 0 0     39

The Mother Nature Factor

Please note, that occasionally the event distance will not be exact because roads end, highways get in the way, cattle stampede and it snows in Wisconsin. We do our best to ensure all events are exact distances exact but occasionally mother nature happens.


This event is a Silver Circle Sports Events, LLC owned, produced, timed & managed event.  Need help with an event?  Contact us HERE.