The 2025 event has concluded.






















Partly cloudy throughout the day with rain.
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The Colfax Marathon (previously known as the Colorado Colfax Marathon) is an annual marathon foot-race held in Colorado, United States, since 2006. Significant portions of the course follow Colfax Avenue. Wikipedia
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29d

News
The 18th Denver Colfax Marathon, presented by Cigna Healthcare, is making some exciting changes to its 2024 race courses.
10d

News
Denver Colfax Marathon May 2024 races include marathon, half marathon, 10 miler, 5K and nation’s largest marathon relay. Registration early prices increase Colorado.
17h

News
Historical Weather & Results
RunScore

Temp
67°F
Min/Max
46°/67°F
Dew
32°F
Days of Rain
1/18
Wind
8mph
Tap a row for details.
Year | Conditions | Low / High | Rain | Dew | RunScore |
---|---|---|---|---|---|
2024 | ![]() | 55°/ 78° | - | 38° | ![]() |
2023 | ![]() | 51°/ 71° | - | 41° | ![]() |
2022 | ![]() | 55°/ 72° | - | 35° | ![]() |
2021 | ![]() | 35°/ 69° | - | 17° | ![]() |
2019 | ![]() | 37°/ 58° | - | 37° | ![]() |
2018 | ![]() | 42°/ 55° | - | 42° | ![]() |
2017 | ![]() | 45°/ 63° | - | 32° | ![]() |
2016 | ![]() | 41°/ 58° | - | 37° | ![]() |
2015 | ![]() | 46°/ 63° | - | 33° | ![]() |
2014 | ![]() | 50°/ 80° | - | 37° | ![]() |
2013 | ![]() | 51°/ 66° | - | 31° | ![]() |
2012 | ![]() | 47°/ 72° | - | 39° | ![]() |
2011 | ![]() | 34°/ 44° | Light | 33° | ![]() |
2010 | ![]() | 41°/ 62° | - | 38° | ![]() |
2009 | ![]() | 50°/ 76° | - | 31° | ![]() |
2008 | ![]() | 53°/ 81° | - | 32° | ![]() |
2007 | ![]() | 55°/ 75° | - | 42° | ![]() |
2006 | ![]() | 36°/ 63° | - | 23° | ![]() |