
Fort Collins, United States of America · Sunday 2 May 2027
The Colorado Marathon is a long-distance running event held annually in Fort Collins, Colorado, characterized by its route through the scenic Poudre Canyon and along the Cache la Poudre River. The event is part of the broader tradition of marathons, which originated from the legend of Pheidippides' run after the Battle of Marathon in ancient Greece, immortalizing endurance races as tests of stamina and determination.
Adjusted Time
3:49:28
Time difference: -10.5 minutes compared to a flat, road, temperate course.
On our difficulty model, Colorado Marathon plays about 4 minutes faster than an average road marathon - a genuine PB course for a 3:30 runner. It ranks #1138 hardest of 1150 marathons we analyse, and #567 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Colorado Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:51:39 | −08:21 |
| 3:30:00 | 3:20:35 | −09:25 |
| 4:00:00 | 3:49:28 | −10:32 |
| 4:30:00 | 4:18:19 | −11:41 |
| 5:00:00 | 4:47:08 | −12:52 |
| 5:30:00 | 5:15:54 | −14:06 |
| 6:00:00 | 5:44:38 | −15:22 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Colorado Marathon is a full marathon held in Fort Collins, United States of America. It is scheduled for Sunday 2 May 2027. The course is run on road surface with 63m of total climbing and around 407m of descent (a net drop of roughly 344m), with its high point near 1864m above sea level. For registration and full race details, visit the official Colorado Marathon website.
This is a net-downhill course: it descends roughly 344m more than it climbs (63m of ascent against about 407m of descent), dropping from a high point near 1864m toward 1515m above sea level. Point-to-point downhill courses like this are among the fastest available for a personal best or a Boston qualifier - just be aware that sustained descending fatigues the quads late in the race, so ease off early and do some downhill running in training.
Based on historical weather data for May, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 4°C to 18°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (0%), so dry conditions are likely.
Colorado Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Colorado Marathon against other marathons to find the right race for your goals.
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