Chilly Willy 5K/10K/Half Marathon - Phoenix
About this race
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 Thunderbird Paseo 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!
Pick your distance
Running
5K
Awesome Flat & Certified Course
10K
Great double loop of the 5K course
5K-No Shirt
Same great everything...Just No Shirt
10K-No Shirt
Same great everything...Just No Shirt
Half Marathon
Half Marathon-No Shirt
Virtual 5K
Race when & Where you want
Virtual 10K
Race when & Where you want
Virtual Half Marathon
Typical race-day weather
Based on 3 years of Open-Meteo archive data for this event's race dates in Phoenix, plus the 3 days either side.
The sun rises at 6:32 AM and sets at 4:38 PM local time (PST) in Phoenix on January 10, 2027 — 10h 05m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Results — Chilly Willy 5K/10K/Half Marathon - Phoenix
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🏃 Plan Your Next Race in Phoenix
Find upcoming events by distance:
- Phoenix 5K Races 71 races
- 10K Run Events in Phoenix 51 races
- Phoenix Half Marathons 45 races
- Phoenix Running Calendar 2026 79 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 81 Phoenix events
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