Last Herron Standing Backyard Ultra

Kalispell, United States • 1-2 Aug 2026

Last Herron Standing - Backyard Ultra

The event is a backyard ultra held at 2310 Foys Lake Rd, Kalispell, Montana, over the dates 08/01/2026 to 08/02/2026. It uses repeated loop laps and tests endurance through repeated hourly laps rather than a fixed total distance.

The solo format is a last-person-standing endurance race. Participants run a 4.167-mile loop each hour; the loop repeats hourly and continues until only one runner remains. The solo entry fee is listed as $100 early and $125 late. The event description notes there is no set mileage and the runner decides how far to continue.

The team relay follows the same lap rules with a 24-hour maximum. Teams are typically 2 to 4 people, and the listed competitive relay distance is 100 miles. If multiple teams finish at the same point, the fastest team wins. Teams may also register as non-competitive Fun Run teams and may include any number of participants. The team fee is listed as $50 per person early and $70 late.

A separate kids fun run covers 3K with a fee of $10. Distances and formats described above are the core event options for participants. Visit the organization's website for the most recent information.

Race information

100 mi
Last Herron Standing- Backyard Ultra- Team Relay
4 mi
Last Herron Standing- Backyard Ultra- Solo
Visit the organization's website for the most recent information.
Trail runs nearby

Experience the scenic trails of Herron Park in Kalispell with a half marathon or shorter trail run. Support local trail maintenance while participating in one of the region's established annual racing events.

Experience a point to point mountain marathon on the Foy's to Blacktail Trail system in Montana. This limited entry event supports local trail maintenance and features a scenic course through wildlife habitat.

A 3.8 mile run or hike to the Big Mountain summit with 2,200 feet of climb in Whitefish, MT. Race awards include adult and junior winners, fastest leashed dog categories, and proceeds benefit the Glacier Nordic Ski Team.

An open 4.4 mile event along the Swan River in Bigfork, Montana, with start and finish at Lake Baked. Proceeds support a TFC campaign offering retreats and education in cold plunging and heat therapy for people with TBI and PTSD.

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