Bundle up and get ready to race! The Chilly Willy 5K/10K/Half Marathon is the perfect way to kick off the new year with some frosty fun and a whole lot of miles. Whether you’re tackling the 5K, digging deep for the 10K, or braving the full Half Marathon, this winter-themed event brings runners together for a crisp, refreshing challenge that celebrates the season.
Every participant will earn a finisher medal, a well-deserved reward for braving the chill and crossing that finish line. We’ll also be presenting overall and age-group awards for each distance in the usual 5-year categories starting at 10 & under, giving runners of all ages a chance to shine.
We'll be starting at 8:30 am at Mariposa Basin Park.
It's wrapped in cool winter vibes, complete with themed swag, an energetic race atmosphere, and a finish-line experience that makes every shiver worth it. The event is designed for everyone—from first-time 5K walkers to seasoned half-marathoners looking to start the year strong.
Layer up, lace up, and come chill with us at the Chilly Willy 5K/10K/Half Marathon… where the air is cold, but the race-day excitement is always red-hot!
Event details and schedule
Virtual Running - How it works & Link for Time SubmissionCan't make it out to the event site on race day?
Still want to participate or support the cause and have a shot at an award? Or, maybe you saw the shirt and said: "Sweet...I want one!" Then, the virtual race is for you. Run when & where you want, just submit your time by end of Race Day. We'll ship out virtual packages the Monday after event date! *Shipping available for continental US only.
New to Virtual Running? Here's how it works:
Step 1
Get excited, grab some friends & pups to join you! Sign up, and register for the Chilly Willy Virtual 5K, 10K or Half!!
Step 2
Download your Custom Digital Bib! Hydrate and get ready to get moving!
Step 3
Get out there and run or walk! You can run at the park, your favorite route in your neighborhood; anywhere you want. Please remember to social distance & be safe!
Step 4
HAVE FUN!~
Share your distance, a selfie, or a picture along your race route, and use the hashtag #ChillyWilly5K #ChillyWilly10K #ChillyWillyHalf #fivestarrunning
Step 5
Submit your results directly on RunSignUp.com through your Profile or registration.
You can submit your race time HERE on the Virtual Results page anytime until end of day 1/14/26.
Step 6
View your Virtual Results HERE Monday after the Event Date.
Course & Timing
We’re chip timing the start & finish, and everything is pretty flat, so you're guaranteed a great net time.
Water Stations
We will have Self-Serve water stations approximately every 1.5 miles. If you are wanting to run fast and not stop, you might want to bring your own personal hydration.
Pacing
The longest distance will need to keep a 16 min/mile pace to finish before the course closes.
Groups & TeamsRunning is more F-U-N together, even if we're far apart!
Organize your very own Chilly Willy Team! Grab your friends, co-workers, neighbors or family and participate as a Team. Teams of 5 or more receive discounts off their registration.
- 5+: $2.50 off
- 11+: $3.75 off
- 21+: $5.00 off
- 51+: $6.25 off
- 100+: $7.50 off
Awards & Goodies
Awesome Custom Finisher Medals included for all of the finishers!
Awesome Custom Finisher Medals included for all finishers! Only 200 finisher medals have been ordered so sign up early!
We'll have awards in the following categories for all 3 races:
- Top 3 Overall M/F
- Top 3 Overall Masters M/F
- Top 3 Overall Sr. Masters
- Top 3 Overall Grand Masters
- Top 3 in each of the normal 5 year age groups 10 & under through 75+
Great long sleeve race shirts in your size to all participants (guaranteed if you register by 1/3).
Event Courtesy & Refund Policy
Our events are designed to be fun for the entire family. With that in mind; any competitor, spectator, parent, volunteer, or sponsor, exhibiting unsportsmanlike
conduct or interfering with the positive, competitive atmosphere of the event will be asked to leave the venue and course immediately with no refunds.
All registrations are final. There are no refunds, deferments, or transfers.
Event will take place rain or shine. In the event of extreme weather, we will cancel for the safety of the participants...there are no refunds in this case.
Participants that do not show up to race/event forfeit their right to any swag.
No COVID-19 Refunds. If unforeseen circumstances arise due to COVID-19, including any Federal or State Health Emergency, refunds will not be provided. The event will go 100% Virtual & shirts will be shipped to participants.
Event ScheduleDec 31
- Last day to register to guarantee shirt size
Jan 9
- 6:00 pm - 7:00 pm Early Packet pickup at race site
Jan 10
- 7:30 AM Race Day Registration & Check-In Opens