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Registration open

Tough as Trails Race Series

Durham, North CarolinaField of 150
Days to register
2

At a glance

Date
Oct 25, 2026
Location
Durham, North Carolina
Registration
Open until Oct 24, 2026, via runsignup.com

Listed from RunSignUp. Checked Oct 22, 2026.

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About this race

Bull City Running Co. proudly presents Tough as Trails Off-Road Race Series that features some of the most challenging, beautiful single track trail runs in North Carolina. 

The series is comprised of 3 races in 2026-2027:

Eno River Run (10/25/26): 6 or 11 miles

Uwharrie Mountain Run (2/6/27): 8, 20, or 40 miles

Mountains-to-Sea Trail Challenge (4/11/27):13 miles or 50km

All races have distance options, so cost of the series depends on distance selected for each race. 

Series Rules:

Please ensure you read and understand all series rules before registration.

1. Participants must register for all 3 races during Tough as Trails series registration.

2. Participants must complete all races within series to be eligible for awards. 

3. Series scoring and awards are based on total mileage completed, calculated by the ranges provided below. Final distance is calculated after last race in series.

4. No refunds will be issued for an adjustment to a reduced distance. Additional race fees may apply for an adjustment to increased distance.

5. A change in distance request must be made 1 month before race date to the series director at toughastrails@gmail.com. The Race Director has the discretion to approve or deny a distance transfer request based on individual race caps.

6. No refunds or participant transfers are permitted after registering for the series.

Awards:

All series finishers will receive a custom finishers award, in addition to receiving all benefits (i.e race t-shirts) and finisher prizes (if applicable) from each individual race in the series.

Have fun! Happy trails!

Key dates

Registration opens

Jul 15, 2026

Registration closes

Oct 24, 2026

2d

Race day

Oct 25, 2026

3d

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Similar races

  • Eno River Run

    Oct 25Durham, NC11 mi, 6 mi

    1 mi from Tough as Trails Race Series, the same weekend as Tough as Trails Race Series, registration open

  • Extra Mile Backyard Ultra

    Oct 31Durham, NC8 mi, 10K +2

    6 mi from Tough as Trails Race Series, 1 week after Tough as Trails Race Series, registration open

  • Triple Lakes Trail Race

    Oct 24Greensboro, NC40 mi, Marathon +2

    50 mi from Tough as Trails Race Series, the same weekend as Tough as Trails Race Series, registration open

  • Cane Creek Mtn Trail Run

    Nov 7Snow Camp, NCHalf Marathon, 10K

    30 mi from Tough as Trails Race Series, 2 weeks after Tough as Trails Race Series, registration open

Straight-line distance

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