Fastest marathons in Colorado

The Colorado marathons where finishers run fastest, ranked by median finish time over each race's last three years of results.
  1. 1
    The Colorado Marathon
    Fort Collins
    2,243 finishers over 2 yearsNext: May 2, 2027
    4:20:02
    median finish
  2. 2
    The Equinox Half Marathon & 5 Mile
    Fort Collins
    351 finishers over 3 yearsLast run Sep 14, 2025
    4:22:08
    median finish
  3. 3
    The Steamboat Marathon
    Steamboat Springs
    344 finishers over 1 yearNext: Jun 6, 2027
    4:24:12
    median finish
  4. 4
    The Long View Marathon
    Fort Collins
    409 finishers over 3 yearsLast run Oct 10, 2026
    4:26:03
    median finish
  5. 5
    Colorado Springs Marathon, Half, 5K, and Kids K
    Colorado Springs
    443 finishers over 1 yearNext: Oct 2, 2027 54°F race morning
    4:59:05
    median finish

Fastest marathons by state

Common questions

What is the fastest marathon in Colorado?

By the results we track, The Colorado Marathon in Fort Collins: its median finisher runs 4:20:02, 9:55 per mile, over its last 2 years. Next is The Equinox Half Marathon & 5 Mile at 4:22:08.

How are the races ranked?

By the median finish time of each race's last three years of results: the time half its finishers beat. A race needs at least 200 finishers to be ranked. It reflects the course, the usual weather and who enters: races that draw serious runners rank high.

Which marathon is best for a personal record?

Look for a flat course, a cool race morning and a field near your pace, so you have people to run with. The races here are where finishers run fastest; check each one's course and weather, shown in its listing.

Chasing a Boston qualifier? See the marathons where the most runners qualify →

Fast isn't everything. raceIQ shows where you'd place in every upcoming race, by your pace and age group.

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