About This Race

FOURmidable is one of the most challenging trail races in the Auburn/Cool area, offering 50K, 35K, Half Marathon, and 13K distances on the same day. The 50K features over 6,000 feet of accumulated climbing across four hills including Cardiac Hill and Knickerbocker. Less than one mile of the course is on road. It is a cupless event with full aid stations and a post-race party.

Course & Race Day Details

Hilly course
Elevation
Hilly Course
Trail surface
Surface
Trail Surface
T-Shirt
Race Swag
FOURmidable 50k, FOURmidable 35k, FOURmidable 13k, FOURmidable Half Marathon +: T-Shirt

Hydration Support

Aid stations may include soda, boiled potatoes, candy, gels, electrolyte, salt tablets; cupless event, runners bring their own reusable cup or bottle.

Race Weekend Logistics

Packet Pickup

Early goody bag pick up at START/FINISH AREA (Overlook Park) from 3 PM to 6 PM the day before; race-morning pickup starts 1hr before your race at Overlook Park.

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Choose Your Distance

FOURmidable 50k 50K
$80.00
Increases Oct 31
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FOURmidable 35k 35K
$60.00
Increases Oct 31
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FOURmidable 13k 13K
$40.00
Increases Oct 31
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FOURmidable Half Marathon + Half Marathon
$50.00
Increases Oct 31
Register