Herron Half Marathon, 10K and 5K Trail Run
- Date
- June 20, 2026
- Location
- Herron Park, Kalispell, MT
- Distance
- 1/2 Marathon · 10K Trail Run · 5K Trail Run
From the Organizer
Welcome to the 14th annual FTBT-Herron Half Marathon/10k/5k and Kids' Race! Please see the main webpage (Herron Half/10k/5k) for details, but here a few key points to know:
PLEASE CARPOOL! We are limited in parking. We will have a team of people helping to make parking as efficient as possible, but we need your help by sharing rides.
Official start times: 7:00 a.m. for the Half Marathon, 7:15 for the 10k and 7:30 for the 5k. There will be brief pre-race meetings 10 minutes before each start.
These races are our largest annual fundraisers. We’ve kept registration fees low over the last 12 years to keep the events affordable. PLEASE CONSIDER DONATING TO SUPPORT OUR MISSION! The money raised from the races goes directly to building and maintaining trails in the 40+ mile FTBT system. In addition to event fees, our trails thrive largely in part to our dedicated sponsors. Please see the main webpage (Herron Half/10k/5k) for the list of this year's sponsors.
The Flathead Race Series!
See main website for details. Races include FTBT races, the Big Mountain Run, the Whitefish Trail Blazer races, and the Le Grizz races. At the end of the year, Competitive Timing will compile a list of all who have completed the series as well as a leader board.
Events
Weather
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
72°
Typical Low
45°
Chance of Rain
40%
Based on US Climate Normals data from Kalispell Glacier Ap, 6 mi from the venue.
Host City
About Kalispell, MT
Population
26,830
as of 2023
Elevation
3,068 ft
Nearest Airport
FCA
Glacier Park International Airport · 7 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
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Herron Half Marathon, 10K and 5K Trail Run, put it on the calendar, and turn “someday” into a start date.
12
Days to train
- Race
- Herron Half Marathon, 10K and 5K Trail Run
- Date
- June 20, 2026
- Location
- Herron Park, Kalispell, MT
Coming Up
More Running races near Kalispell, MT
Foy's to Blacktail Trail Marathon
Marathon
Less than a mile away
Firecracker RUN 406
13 miles away
Boogie To The Bank
11 miles away
The Big Mountain Run - Danny On Hill Climb
13 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Herron Half Marathon, 10K and 5K Trail Run?
- Herron Half Marathon, 10K and 5K Trail Run is a running race held in Kalispell, Montana on June 20, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Herron Half Marathon, 10K and 5K Trail Run?
- Saturday, June 20, 2026 in Kalispell, Montana at Herron Park, Kalispell, MT. Check the event page for exact start times and wave schedules.
- How do I register for the Herron Half Marathon, 10K and 5K Trail Run?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Herron Half Marathon, 10K and 5K Trail Run
Jun 20, 2026