Lone Tree Reckoning Heavy 15K and 5K
Lone Tree Reckoning Heavy 15K and 5K is a trail running and running race on November 14, 2026 in Loveland, CO, with entry fees from $45 to $75.
- Date
- November 14, 2026 (46 days to go)
- Price
- $45–$75
- Sports
- Trail RunningRunning
From the Organizer
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.
Events
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
54°
Typical Low
22°
Chance of Rain
20%
Based on US Climate Normals data from Loveland 2n, 1 mi from the venue.
About Loveland, CO
Population
77,350
as of 2023
City Elevation
5,002 ft
Nearest Airport
BJC
Rocky Mountain Metropolitan Airport · 34 mi
Major Hub
DEN
Denver International Airport · 43 mi
Time Zone
Mountain Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Lone Tree Reckoning Heavy 15K and 5K, put it on the calendar, and turn “someday” into a start date.
46
Days to train
- Race
- Lone Tree Reckoning Heavy 15K and 5K
- Date
- November 14, 2026
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About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Trail Running
Running off-road — dirt, singletrack, and mountain paths — from 5Ks to ultras. The terrain makes for an exciting twist and adventure in your running journey.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
More Trail Running races near Loveland, CO
Frequently Asked Questions
What is the Lone Tree Reckoning Heavy 15K and 5K?
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Lone Tree Reckoning Heavy 15K and 5K
Nov 14, 2026