Oklahoma · Half Marathon · 10K · 5K
Chilly Willy 5K/10K/Half Marathon
Chilly Willy 5K/10K/Half Marathon is a half marathon, 10K and 5K event held in Oklahoma City, Oklahoma. Its next confirmed date is Saturday, January 16, 2027. About 800 runners take part across all distances.
- Race day
- January 16, 2027
- Location
- Oklahoma City, OK
- Field size
- ~800 runners
Race details
- Date
- Saturday, January 16, 2027
- Location
- Oklahoma City, Oklahoma
- Distances
- Half Marathon, 10K, 5K
- Field size
- About 800 runners
- Course
- Mostly flat
- Registration
- runsignup.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: not announced
- Start time
- 8:30 AM CST
- Course profile — Half Marathon
- Loop course; Road surface
- Course profile — 10K
- Out-and-back course; Road surface
- Course profile — 5K
- Out-and-back course; Road surface
- Typical race-day weather
- about 27°F at the start, 65% humidity, 3 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 5, 2026)
About the Chilly Willy 5K/10K/Half Marathon
A cold-weather January half marathon, 10K and 5K in Oklahoma City.
Rankings and notes
- Rankings and awards
- Popular OKC winter half marathon
More half marathons in Oklahoma
Coming up next, by confirmed date.
More races in Oklahoma City
More upcoming races in Oklahoma
Keep exploring
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- 10Ks in Oklahoma 43 upcoming races
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- 10Ks in the United States 2,755 upcoming races
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Guides from the RaceRove blog
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Chilly Willy 5K/10K/Half Marathon: common questions
- When is the Chilly Willy 5K/10K/Half Marathon?
- The next confirmed date is Saturday, January 16, 2027.
- Where is the Chilly Willy 5K/10K/Half Marathon held?
- In Oklahoma City, Oklahoma.
- What distances does the Chilly Willy 5K/10K/Half Marathon offer?
- Half Marathon, 10K and 5K.
- How many people run the Chilly Willy 5K/10K/Half Marathon?
- About 800 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Chilly Willy 5K/10K/Half Marathon?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Chilly Willy 5K/10K/Half Marathon?
- Registration status as last checked October 5, 2026: not announced.
- What time does the Chilly Willy 5K/10K/Half Marathon start?
- 8:30 AM CST.
- What is race-day weather usually like at the Chilly Willy 5K/10K/Half Marathon?
- about 27°F at the start, 65% humidity, 3 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 5, 2026).
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.