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Colfax Marathon

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Event information

Colfax Marathon

May 21, 2023

4.3
RegisterOrganizer`s website

Where

Denver, CO, United States

Start time

06:00

Distances

Marathon, Other, 5K, Half Marathon, 10 mile

Sub-events

26.2

Marathon

May 21, 2023 Sunday
Distance: Marathon·Start time: 06:00
Run/WalkPoint to pointMarathon
Other

Relay Team

May 21, 2023 Sunday
Distance: Other·Start time: 06:00
Run/WalkPoint to pointOther
Other

Relay Team - Premium

May 21, 2023 Sunday
Distance: Other·Start time: 06:00
Run/WalkPoint to pointOther
5K

Colfax 5k Adult Registration

May 21, 2023 Sunday
Distance: 5K·Start time: 06:00
Run/WalkPoint to point5K
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Race Results

Top 3

1. JACK DAVIDSON 02:23:19
2. RAJPAUL PANNU 02:34:30
3. JAMES CECIL 02:34:42

Top 3 Women

1. SHELLEY MCDONALD 02:54:12
2. SARAH VILLASENOR 02:56:17
3. AUBREY ARMENTO 03:00:52

Top 3 Men

1. JACK DAVIDSON 02:23:19
2. RAJPAUL PANNU 02:34:30
3. JAMES CECIL 02:34:42
SEE ALL RESULTS

Race Details

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Training Plan

Free 20 week Basic Marathon Training Plan

A detailed plan created by our Head Coach designed for help you prepare for your first marathon.

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Reviews

4.3
Based on 1 Reviews from other runners - tap or click to see all!

By: Nancy S.

Posted: May 23, 2022

Good Way to Get CO Done

This course has less elevation changes in it than many in CO. However, it's still at altitude so, unless you live at altitude, expect it to feel tougher and be slower than your usual time. Organization was good, but there are a lot of races going on consecutively, which I'm not a big fan of (in addition to full & half, there was a relay, a 10 miler, and a 10k all on the same morning/venue). At least they didn't start at the same time haha. There's a 5k the day before- maybe they could shift the 10k & 10 miler to Saturday?? The course is okay; the highlight is running through Mile High Stadium twice. Also runs through a fire station (interesting). Otherwise standard stuff on roadways mostly. Some music and some nice spectators, great volunteers of course. 48th race marathon or longer distance for me, I recommend this race to anyone doing states that doeesn't want to seriously beat themselves up. :)
4.3
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Training Tips

The 4-Week Taper Blueprint: How to Reduce Mileage Before Race Day Without Losing Your EdgeThe 4-Week Taper Blueprint: How to Reduce Mileage Before Race Day Without Losing Your EdgeYou’ve logged the miles, endured the long runs, and pushed through more early mornings than you’d care to count. Now, with race day approaching,...

Jun 8, 2026

Related News

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A gallery of photos taken during the 2023 Colfax Marathon on Sunday, May 21.

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May 23, 2023

Denver's largest running weekend sells out marathon race distance

2023 Colfax Marathon on May 21 was sold out for the first time in history.

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May 15, 2023

Casa Bonita partners with Denver Colfax Marathon

The volunteers for the 2023 Colfax Marathon on May 21 will be sponsored by Casa Bonita.

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Apr 10, 2023

Colfax Marathon: How to register for Colorado's largest running event

The 2023 Colfax Marathon on May 21 is expected to have more than 20,000 runners.

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