HalfRuns
Colorado 13er (Half Marathon/10k/5k)

Colorado 13er (Half Marathon/10k/5k)

Race Date

Jun 7, 2026

Location

Louisville, CO

Solid Pick55

The Experience

The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable, kind-to-your-body, well-supported 13.1 race!  Seasoned runners and first-timers alike appreciate the excellent communication from the 13er race crew who make this event accessible for athletes of all levels. ------------------------------------------- Join us for this exceptionally scenic, looped 13.1 course which runs through gorgeous Louisville, Colorado! We designed this course so that you can enjoy all of the spectacular views of the Flatirons that Colorado has to offer. Come see for yourself! Groups/Teams/Families: Save $5 per person for groups of 5 or more! See our FAQ page for more questions!  Click the drop-down menu under "race info" for all race details! Any questions, please email us at info@colorado13er.com ------------------------------------------- Here's the good stuff!! - 10 water station passes - 5 port-a-john passes - 9 miles of FLAT, crushed gravel - nearby, free parking - spectator friendly - 13.1 finisher medal - 10k or 5k options available - iced towels at the finish line - gender-specific performance tees for every registrant - chip timed with texted results - live, real-time results posted online - 13.1 miles of million-dollar views AND - the amazing sense of accomplishment you can only get from running 13.1! (or 5k or 10k!)

Logistics

Race Day

Sunday, June 7, 2026

Start Time

6:30 AM

Giveaway

Short Sleeved Tee

Start Location

1200 Dillon Road, Louisville, CO, 80027

Directions

Course Info

Course Type

Loop Course

Terrain

road

Difficulty

Ultra-Flat

Elevation Gain

0'

Net Drop/km

0 m (Flat)

Separation

0.0%

Also Offers

10K5K

Course Map

3 other maps for this race

Quality Score

Solid Pick55
Methodology
Heritage20/20

12 years running

Size12/15

~220 finishers a year

Momentum5/5

growing or steady

Loyalty4/20

4% returning runners

Course & details5/15

2 timing sources

National draw6/10

runners from 11 states

Front-pack speed3/5

winner 1:20:26

Weather0/10

typical high 79°F

Race Day Weather

5-year historical avg

Start (Low)

53°

Afternoon (High)

79°

Warm — hydration strategy is key, start conservatively

0.1"

Precipitation

11 mph

Wind

56%

Humidity

Historical Finish Times

How 1,956 finishers actually crossed the line across 12 years.

Most recent

2025

Total finishers

1,956

Median time

2:12:05

Latest turnout

143

States

38

10%
25%
75%
90%
1:20p50 median ≈ 2:204:25

Turnout by year

20172025

'17'18'19'21'22'23'24'25
See full results

Hover the histogram to inspect specific finish times.

Race Photos

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