February 17 - 18, 2018


298 Pacific ave.

Auburn, CA 50K, 35.5K, 1/2 Marathon, 13K

Registration Ended Wed. Feb 14, 2018 @ 11:59 PM




We are excited to announce that FOURmidable 50k will serve as the USATF 50k National Championship and USA TEAM selection. Top male and female will receive automatic spot in the USA TRAIL TEAM.

Only active members of the USATF at the time of the race will be eligible for the prize money.

Make sure your membership is active and current. Visit https://www.usatf.org/membership/application/

Athletes who participate in National Championships and Team USA competitions are subject to drug testing performed by the U.S. Anti-Doping Agency (USADA) in accordance with the USADA Protocol for Olympic and Paralympic Movement Testing.

2019 Information

The 2019 edition for the 50k will be held on Saturday February 16, while all of the shorter distances (35k, half & 13k) will be held on Sunday February 17.

You can also sign up to run two days, 50k on Saturday, and any of the three distances on Sunday.

Our refund schedule is the following:

75% If requested earlier than two months before race day.
50% Within 60 days of race day.
25% Within 30 days of race day.
No refunds within 15 days of race day.

$$$ prize - 50k only

Male and Female fields will share a prize purse of $5,000 to be payable as following:

1. Place - $1,000

2.Place - $700

3.Place - $500

4.Place - $200

5.Place - $100

$$Course Record Award$$

An extra $500 will be awarded to anyone who breaks the current course record in each gender.

Male: Max King - 3:32:36hrs - 2017

Female: Stephanie Violett-Howe - 4:10:16hrs - 2018

Late Registration

Our online registration will close on Feb 14 at 12:00am , but you can still register during packet pick at The Aid Station - Trails and Ales on Friday Feb 15 from 1 - 5pm, or before the race while supplies last. Late registrations are not guaranteed tshirts until after the race.

50k = $170
35k = $140
Half = $130
13k = $85



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