

Chilly Cheeks Duathlon 2027
- Date
- Saturday, February 20, 2027
- Start time
- 10:00 AM start (Denver)
- Location
- Englewood, Colorado
- Entry fee
- From $65 · goes up to $75 on Dec 1, 2026
Registration is open.
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Official race websiteAdd to calendar: Apple or Outlook · Google
Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Approved Youth Duathlon | Duathlon | Feb 20, 202710:00 AM | $65$75 after Dec 1, 2026 | – |
| Duathlon Relay | DuathlonRelay or team | Feb 20, 202710:00 AM | $90$100 after Dec 1, 2026 | – |
| Individual Duathlon | Duathlon | Feb 20, 202710:00 AM | $65$75 after Dec 1, 2026 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Duathlon fee goes up to $75 on Dec 1, 2026.
Race day planning
Entry fee schedule
- Approved Youth Duathlon and Individual Duathlon: $65 until Dec 1, then $75 until Feb 1, then $75 until Feb 20, then $85 until Feb 20.
- Duathlon Relay: $90 until Dec 1, then $100 until Feb 1, then $100 until Feb 20, then $110 until Feb 20.
Online registration closes Feb 20, 2027, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 6:46 AM, and the Approved Youth Duathlon starts at 10:00 AM. The start sits about 5,640 feet above sea level, high enough that most athletes from lower ground race noticeably slower.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
4800 S Dayton St, Englewood, CO 80111
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Where Chilly Cheeks Duathlon ranks
- No. 43 of 50 on Cheapest duathlons in the US
National lists computed from results, entry fees, course maps and water temperatures; they refresh through the day.
Typical race-day weather
Around February 20 the day usually runs from 19°F at dawn to 47°F in the afternoon, with measurable rain on about 11% of days. Cold snaps dip to -1°F and hot years reach 61°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- 4800 S Dayton St, Englewood, CO 80111Map
- Course
- Road
- Start elevation
- About 5,640 feet
- Included with entry
- Chilly Cheeks Sweat Pants
- Distances
- Duathlon
- Editions
- 2027 (Feb 20, 2027), 2026 (Feb 21, 2026), 2025 (Feb 22, 2025), 2024 (Feb 24, 2024)
Organize this race? Add details or a correction
Quick answers
- When is Chilly Cheeks Duathlon?
- Saturday, February 20, 2027, starting at 10:00 AM.
- How much does it cost?
- Entry starts at $65 before processing fees, and rises to $75 on Dec 1, 2026.
- When does registration close?
- Online registration closes Feb 20, 2027, unless the race fills first.
- What distances are offered?
- Duathlon.
- Where does it start?
- 4800 S Dayton St, Englewood, CO 80111.
From the organizers
Race & Entry Information
The Chilly Cheeks event is held in the traditional duathlon format of Run-Bike-Run. Both runs will be 2.5 miles and the bike course will be 10.8 miles. As always, we will provide a marked and marshaled course, fast & accurate chip timing, light refreshments including Jill's famous banana chocolate chip bread, and some fun mid-winter competition in the heart of Denver.
All athletes who enter before February 1st will get a pair of Chilly Cheeks Sweat Pants included with their entry! These are perfect for pulling on post-race or for lounging around the house. Those who enter on February 1st or later will have the option to purchase a pair while supplies last.