What race distances can I run in Fort Collins?
Fort Collins has 5K (9), Half Marathon (5). The 5K is usually the easiest entry point if you are new, and the links above jump straight to each distance.
Colorado · Race calendar
Running Races in Fort Collins, Colorado
Upcoming running races in and near Fort Collins, Colorado - 5Ks, 10Ks, half marathons and more, with dates, pricing, finish-time stats, start-line maps, and local run clubs to train with.
12 upcoming races · 10 with finish-time stats
By the numbers
The Biggest and Longest-Running
The Fort Collins races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
Tue, Aug 4, 2026Eltuck Valley 5K - Lory Summer Trail Series Fort Collins, COFrom $30Details Fri, Aug 7, 2026Choice City Running Festival Fort Collins, COFrom $33Details Sat, Sep 5, 2026Recovery Run of the Rockies 5K Fort Collins, COFrom $30Details Sun, Sep 20, 2026Fall Equinox Fort Collins, COFrom $75Details Sat, Oct 3, 2026Homecoming 5K - Colorado State University Fort Collins, COFrom $25Details Sat, Oct 10, 2026The Long View Marathon Fort Collins, COFrom $35Details Sun, Oct 11, 2026The Moony Pride 5k Fort Collins, COFreeRegister Sun, Nov 1, 2026Girls on the Run Northern Colorado Fall 5K Fort Collins, COFrom $29Details Sat, Nov 7, 2026Colorado 24 Hour Run Fort Collins, COFrom $105Details Thu, Dec 31, 2026Resolution Run - Fort Collins Fort Collins, COFrom $25Details Sun, Apr 18, 2027Horsetooth Half Marathon Fort Collins, COFrom $75Details Sun, May 2, 2027The Colorado Marathon Fort Collins, COFrom $40Details
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Common Questions About Racing in Fort Collins
When is race season in Fort Collins?
October is the busiest month for races in Fort Collins, with 3 of the 12, followed by August with 2. If you are flexible on the date, that is the quickest way to narrow things down.
How early should I register for a race in Fort Collins?
8 of the 12 races in Fort Collins already have a price increase scheduled, so entry gets more expensive the longer you leave it. Race pricing almost always steps up as the date approaches, and signing up early is usually the cheapest option.
Are Fort Collins races beginner-friendly?
Yes, for the most part. Across the 10 races in Fort Collins with published results, the typical median finish is around 2:08:53, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.
Where can I train for a race in Fort Collins?
Browse Fort Collins run clubs on RunSesh to find a training group at your pace.
Are there trail races near Fort Collins?
Yes, one race around Fort Collins gets you off the pavement: 1 is a trail race. Surfaces are not always published, so it is worth checking a specific race before you register.