Longmont Half & 5k (LM Half)

Tue July 4, 2023 Longmont, CO 80504 US
Course Info/Maps

Half Marathon Course Notes:
This course gives so many beautiful vistas, more time along the river (that means it will feel COOLER) and it runs past our shoe store partner, Shoes & Brews! How great is that?

From the start, you will run counterclockwise around the park.  When you reach the south-east corner, you exit Sandstone Ranch and then you'll follow the road for a short time to the visitor's center and enter the trail system. From there, you'll face the mountains for many miles, running west to a turnaround location (just before Left Hand Brewery)  Turn around and run back the way you came, past the nature center, up the final (tough) hill, and DIRECTLY to the finish line.  You do NOT loop the park upon the return, just up the hill and to the finish!

Click here for an interactive map.


5k Course Notes:
The 5k Course is a horseshoe-shaped out and back around the park - FLAT AND FAST!

Click here for an interactive map.


At each water station, you will find water and an electrolyte replacement drink.  There are three aid stations on the 13.1 course that you will pass a total of six times. They are located approximately miles 1.5, 4.25, 6.5, 7.25, 9.75, and 12.5

Gels are located ONLY at the westernmost aid station at miles 6.5/7.25. (There is no water station on the 5k course.)

Although there are cups on the course at each aid station, remember that we always maintain a "CUP FREE FINISH."  There are coolers for refilling your personal water bottle at the expo area.

Restrooms are located at the Expo area and around the park.There will be one port-o-john on the half marathon course at approximately miles 4.5 and 9.5.

The 5k course is completely on concrete.  The Half Marathon is run on a primarily hard surface (concrete) with a few portions of hard-packed gravel.

The Half Marathon Course is open for 3:30:00.  The event starts at 6 AM, therefore, the finish line closes at 9:30 AM.  If you need more time, please email the race director in advance so you can start with other walkers up to 60 minutes in advance of the run start time!

Click the icon below to download the attached PDF.


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