Lone Tree Reckoning Half and 5K
Loveland, CO
Sat, Nov 14, 2026
In 38 days · Sat, Nov 14, 2026
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Saturday, November 14th, 2026
2939 N County Rd 31D, Loveland CO
See race page
29–52°F · low rain risk
See last 10 years
On this date: rain 0 of the last 10 years
2025
36–73°F
dry
2024
29–60°F
dry
2023
35–64°F
dry
2022
21–37°F
dry
2021
33–66°F
dry
2020
29–44°F
dry
2019
28–47°F
dry
2018
26–52°F
dry
2017
32–65°F
dry
2016
38–67°F
dry
Best months to race in Colorado →
Race-day forecast says layers
29°F at the start.
Gloves, ear warmers, throwaway layers, hand warmers — delivered before race day.
About this race
There’s a new challenge waiting on the trail.
The Lone Tree Reckoning Trail Heavy 15K & 5K is your chance to trade pavement for dirt, take in the scenery, and find out what the trail has in store for you.
Don’t let the views fool you—this course has some personality. Expect a mix of runnable stretches, climbs, changing terrain, and sections that will make you work for that finish. Whether you’re taking on the Trail Half Marathon or the 5K, this is a race built for runners who are ready for a little adventure.
Trail Heavy 15K
Thirteen-ish miles of trail, challenge, and plenty of reasons to keep moving forward. The course will test you, but you don’t have to be the fastest runner on the trail to take it on.
Half Marathon Time Limit: 5 Hours
That gives participants an average pace of approximately 22:50 per mile, allowing plenty of room to slow down, hike the tougher sections, catch your breath, and keep moving toward the finish.
Trail 5K
Want a taste of the Reckoning without committing to the half? The Trail 5K brings its own dose of dirt, scenery, and challenge in a shorter distance. It’s a great option for newer trail runners or anyone looking for a fun fall trail race.
Come ready to run. Come ready to hike when you need to. Come ready to earn that finish.
The trail is waiting. Are you ready for the Reckoning?
UPDATE:
Why 15K Instead of a Half Marathon?
We originally planned to include another area of the ranch to bring the course up to half marathon distance. That section isn’t going to work as we’d hoped this year, so the inaugural Lone Tree Reckoning will use the loop we have: just over 15K.
We know some runners were looking forward to a half marathon, and we’re sorry for the change. This loop still brings the climbs, technical terrain, and variety we wanted for the first Lone Tree Reckoning. We’re excited for you to experience it.
Course map
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