Race Discovery
Chilly Willy 5K/10K/Half Marathon - Phoenix
Chilly Willy 5K/10K/Half Marathon - Phoenix logo

Chilly Willy 5K/10K/Half Marathon - Phoenix

Phoenix, Arizona, United States View on map
Jan 10, 2027 (America/Los_Angeles local time)
Running

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

Jan 10, 2027 5K 8:30 AM
$35.00
Open

10K

Great double loop of the 5K course

Jan 10, 2027 10K 8:30 AM
$40.00
Open

5K-No Shirt

Same great everything...Just No Shirt

Jan 10, 2027 5K 8:30 AM
$30.00
Open

10K-No Shirt

Same great everything...Just No Shirt

Jan 10, 2027 10K 8:30 AM
$35.00
Open

Half Marathon

Jan 10, 2027 Half-Marathon 8:30 AM
$60.00
Open

Half Marathon-No Shirt

Jan 10, 2027 Half-Marathon 8:30 AM
$55.00
Open

Virtual 5K

Race when & Where you want

Jan 10, 2027 5K 8:30 AM
$35.00
Open

Virtual 10K

Race when & Where you want

Jan 10, 2027 10K 8:30 AM
$35.00
Open

Virtual Half Marathon

Jan 10, 2027 Half-Marathon 8:30 AM
$35.00
Open

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.

Temp (°C)
Minimum temperature (race-week average) 11.5° / Maximum temperature (race-week average) 26.6°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 10.9° / Maximum feels like — heat index / wind chill (race-week average) 26.6°
Peak wind (km/h)
Strongest wind of the day (race-week average)
9.9
Precip (mm)
Precipitation over the day (race-week average)
0.0mm
Humidity
Mean relative humidity (race-week average)
28.8%
Sunrise
Sunrise at the start line on January 10, 2027 (PST)
Sunset
Sunset at the start line on January 10, 2027 (PST)
Daylight
Hours between sunrise and sunset on race day
10h 05m

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.

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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, 64 Phoenix events

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