The Dirty Duathlon

20221223
2026-01-24

Jan 24, 2026 at 6:30 AM

8000 Douglas Blvd.

Granite Bay CA, 95746

USA

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Entry Fee $60
(Lowest or Early Registration)

Entry Fee 2 $100
(Highest or Late Registration)

Prize Money: no

Distance(s):

Type: Adventure/Stage Race

Starting Elevation: 430

Percent of the course on un-paved trails: 90%

First Year of the Event: 2019

Description:

The Dirty Duathlon

The Dirty Duathlon is an off-road race with a 2 mile trail run – 6 mile single track mountain bike – 2 mile trail run course at beautiful Granite Beach, Folsom Lake SRA.

Event details and schedule

The Dirty Duathlon

Granite Beach, Folsom Lake SRA

The Dirty Duathlon is an off-road Duathlon with a run-bike-run course that has scenic trails to run on, and a fun mountain bike course almost entirely on single track trails. Included for each athlete is a TBF Beanie, a chance at awards in each division, and post race food.

Distances – 2 mile run-6 mile mountain bike-2 mile run

Both runs are the same course, on trails with packed decomposed granite, soft sand, and maybe some mud. There will be an aid station at 1 mile.

The bike course is a combination of single track on hills and rolling flats. Aid stations will be located in the transition area and at mile one on the run course, serving cold water, Hammer Gel Shots, and FLUID Electrolyte beverage.

Awards are for 1st through 3rd place in each age group/category for the Dirty Duathlon for men and women, and 1st overall for each Relay Team Divisions.