COLDERBolder 2025
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Results & Photos
About
Join us IN PERSON in Boulder, Colorado and Run Virtually ANYWHERE in the WORLD
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Sat, Dec 6, 2025
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Boulder, United States
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Where and when
Location
1951 Colorado Ave, Boulder, CO 80305, USA
Start times
Join us IN PERSON in Boulder, Colorado: 7:05 AMRun Virtually ANYWHERE in the WORLD: 7:05 AM
Event summary
Here are the distances available for COLDERBolder 2025
Join us IN PERSON in Boulder, Colorado
5km
free
Run Virtually ANYWHERE in the WORLD
5km
$74
Join us IN PERSON in Boulder, Colorado
5km
free
Run Virtually ANYWHERE in the WORLD
5km
$74
Route information
The ColderBOLDER 5K was created in 2003 as part of our racing series. It’s the “polar opposite” sister race to the BOLDERBoulder. It has become increasingly popular, now selling out year after year.
Race Format
The ColderBOLDER is actually 14 individual races plus a Walking Wave. The top three men and women in each race win Cold Medals. That’s 84 medalists total. So come break out in a cold sweat with us, and pour cold water on those winter blues.
The First 13 races are for people who participated in the last BOLDERBoulder. Each race puts people together who are about the same speed. Why? So everyone has a shot at winning. For example, if you finished the BOLDERBoulder in 52 minutes you race against people who finished between 52-54 minutes. It’s everyone’s chance at personal racing glory and eternal fame.
The 14th Open Race is open to people of all abilities.
We finish with 1 Walking Wave. This is open for anyone who want a festive stroll through CU campus and our winter wonderland. This is not a race (no 1st, 2nd, or 3rd place Cold Medals), but all will receive a Finisher’s Medal!
What's included
• Official ColderBOLDER Beanie
• Bonus Long Sleeve ColderBOLDER Shirt
• Finisher medal after completing the race
• Official ColderBOLDER bib with timing tag with splits at every mile
• Breakfast burrito, donuts, coffee, hot chocolate and other goodies at the finish line
How to get there
1951 Colorado Ave, Boulder, CO 80305, USA
Get full directionsPaid Parking will be available on the CU campus in lots 391, 436 and 169 for a special rate of $5.00. All spaces are first-come, first-served and you must use the TEXT TO PAY feature. MAP
Event day logistics
Answers to all questions available on our website.
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Results & Photos
33 Broadwick St, London W1F 0DQ
Reg number 10083277
