
Herron Half Marathon, 10K and 5K Trail Run
Montana's Herron Half Marathon offers a scenic trail run benefiting local trail systems.
Race Date
Jun 20, 2026
Location
Kalispell, MT
Quick facts
- Date
- Saturday, June 20, 2026
- Location
- Kalispell, Montana
- Distance
- Half marathon (13.1 mi) + 6.2 Miles, 3.1 Miles
- Course
- Loop Course
- Terrain
- Trail
- USATF certified
- Not listed
- Finishers on record
- 719
Highlights
Good For
Atmosphere
Course
The Experience
The Herron Half Marathon, 10K, and 5K are set in Kalispell, Montana's Herron Park, a location that also serves as the start and finish for these trail races. As part of the Flathead Race Series, these events have been raising funds for trail maintenance and development in the Flathead Valley for over a decade, with 11 editions on record since 2012.
The course winds through Herron Park, offering a natural setting for runners. With an average of around 79 finishers in recent years, the races have seen a growing field, attracting participants from about 12 states. This event is a significant fundraiser for Foys to Blacktail Trails, with proceeds directly supporting the construction and upkeep of over 40 miles of trails.
Runners can expect a community-focused atmosphere, with low registration fees aimed at keeping the events accessible. While parking can be limited, encouraging carpooling, the races provide a rewarding experience for participants who contribute to the local trail network. Approximately 18% of participants return for subsequent years, highlighting a loyal following.
Race-provided description
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.
Logistics
Race Day
Saturday, June 20, 2026
Start Time
7:00 AM
Start Location
Herron Park, Kalispell, MT, 59901
Course Info
Course Type
Loop Course
Terrain
trail
Scenery
Park, Forest
Surface
Dirt Trail
Difficulty
Rolling Hills
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Quality Score
Standout7311 years running
~79 finishers a year
growing or steady
18% returning runners
5 timing sources · 6 photos
runners from 12 states
winner 1:29:45
typical high 69°F
Race Day Weather
5-year historical avgStart (Low)
46°
Afternoon (High)
69°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
8 mph
Wind
62%
Humidity
Historical Finish Times
How 719 finishers actually crossed the line across 11 years.
Most recent
2025
Total finishers
719
Median time
2:37:40
Latest turnout
83
States
29
Turnout by year
2017–2025
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Herron Half Marathon, 10K and 5K Trail Run?
The Herron Half Marathon, 10K and 5K Trail Run is held on Saturday, June 20, 2026, starting at 7:00 AM.
Where does the Herron Half Marathon, 10K and 5K Trail Run take place?
It takes place in Kalispell, Montana.
What distances does the Herron Half Marathon, 10K and 5K Trail Run offer?
The half marathon (13.1 miles), plus 6.2 Miles, 3.1 Miles.
Is the Herron Half Marathon, 10K and 5K Trail Run course flat and good for a PR?
The Herron Half Marathon, 10K and 5K Trail Run is a rolling hills, loop course course.
How many people run the Herron Half Marathon, 10K and 5K Trail Run?
HalfRuns has finish records for 719 runners who have completed the Herron Half Marathon, 10K and 5K Trail Run.
HalfRuns editorial — independent, no paid placement.
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