Race Description

Welcome to the Toughest 10k trail run in the US. This course was designed to challenge all runners from beginners to the most experience athletes. With close to 3,500 feet of elevation change and grades as steep as 40% in the hills of Newbury Park, completing this course will give you a sense of accomplishment, satisfaction and bragging right of calling yourself a finisher of the Toughest 10k in the US. The course is very challenging but achievable. Every participant stated this was the hardest course they had ever done. So bring your best trail shoes and get ready for a thigh-burning heart pumping experience.


The race was created to bring awareness of childhood obesity and to help adolescents and adults with developmental disability, as well as blind/visually impaired athletes live more fulfilled lives. All proceeds go towards two non-profits Hacienda Oaks Estates and Extreme Mobility Camps.

For something active and gratifying, please join us for some morning fitness with our 5k trail run and 1-mile family fun run. Perfect for runners, walkers and for all age participants.