Chilly Willy Half Marathon-Oklahoma City
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Event overview
The Chilly Willy 5K/10K/Half Marathon takes place on January 17, 2026 in Oklahoma City at Lake Stanley Draper Playground, 8301 SE 104th St, OK 73165. The event offers in-person and virtual options and includes the following distances:
- 5K
- 10K
- Half Marathon
No-shirt options are available for each distance, and virtual 5K, 10K, and Half Marathon entries are offered.
Course, services and policies
The 5K and 10K use single out-and-back layouts and the Half Marathon is a double loop. The course is described as generally flat. Water stations will be available approximately every 1.5 miles. All finishers receive a custom finisher medal. Awards will be given top 3 overall male and female, top overall masters, senior masters and grand masters, and top 3 in five-year age groups from 10 and under through 75+.
Shirts and other swag are provided; shirts are guaranteed for registrations completed by early January, afterwards items are available while supplies last. Packet pickup is handled at the race site on race morning. All registrations are final: there are no refunds, deferments, or transfers. The event is held rain or shine; in extreme weather the event may be canceled with no refunds. If a Federal or State health emergency related to COVID-19 occurs, the event will go fully virtual and shirts will be shipped. Volunteers who recruit three others and complete race-day duties may receive a $50 Visa gift card. Visit the organization's website for the most recent information.
