Herron Half Marathon

Kalispell, United States • 20-21 Jun 2026

Event overview

The Herron Half Marathon, 10K and 5K are trail races presented by the Foy’s to Blacktail Trails Organization. Distances offered include:

  • Half Marathon
  • 10K
  • 5K

Proceeds and donations support building and maintaining the 34-mile Foy’s to Blacktail trail system. The races are part of the Flathead Race Series. Swag bags and sponsor giveaways are handed out to finishers, and race results and course records are maintained by the timing partner and organizers.

Logistics and policies

Race bibs and packets are available for pick up at Flathead Running Company and on race day at the Herron Park pavilion. There is a free informal kids’ race for participants under 13; it is not officially timed, and the top three of each gender are recognized. Aid stations will not provide cups, so participants should carry their own bottle to use with water or electrolyte drinks. Parking is available in the main Herron lot and an additional stable parking lot; volunteers will direct traffic and wear bright vests. Spectator dogs must be leashed and cleaned up after; dogs are not allowed to run in the races.

Organizers reserve the right to cancel events for safety reasons, including active wildfires or poor air quality. If canceled for wildfire or a natural disaster, participants may defer registration at 50% value or donate their registration. For air quality, specific AQI thresholds determine whether the race proceeds or is canceled and what participant options are offered. Visit the organization's website for the most recent information.

Race information

Half Marathon
Half Marathon
10 km
10k
5 km
Kids' Race
Visit the organization's website for the most recent information.
Trail runs nearby

Glacier Glide is a pursuit style Nordic ski event in Whitefish featuring classic and skate races for youth and adults. Lunch is included and the Viking Pursuit champion earns a free American Birkebeiner entry.

Run the scenic Great Northern Trail from Kila to downtown Kalispell in the Lucky Hare Half Marathon, or tackle the Lucky 9K. Celebrate at Brannigan's post race beer garden with music, raffles, and finisher awards.

Tackle the rugged 26 mile Foy's to Blacktail Trail Marathon near Kalispell, Montana, a point to point mountain course with over 5,000 feet of climbing on mostly single track. Limited to 100 runners and supports trail maintenance.