Jax Mariash

PROBAR® Ambassador

From: Park City, UT

Focus: Ultra Marathons also including Stage Races all over the world.

I began running when I was 5 years old when my mother coerced me into a 5k. I was so nervous but then ended up winning my age group. I was hooked from then on.

Running has run through my blood my entire life and makes me feel like a free spirit. I started in shorter running races and now have become the Queen of Stage Racing, running self supported Ultra Marathons, spread over multiple days, carrying everything on your back to survive. I've also become the first woman in the world to complete the 4 Deserts Race Series Grand Slam Plus, and in 2016 was crowned 4 Deserts Female World Champion.


PROBAR is fuel for the body and soul. I love representing a brand that is making products with real plant based food. When snacking on any of the bars, chews etc. it is nurturing to know the ingredients within and that it is wholesome good food. It is another plus that PROBAR uses organic ingredients. As they say, you are what you eat. Having confidence hours on end on and off the trail makes me feel like I already have an upper edge in my racing. You know that you are getting everything that your body needs and nothing else.

When Not Adventuring

After a long track in corporate America and owning my own marketing agency, I decided it was time to realize my childhood dream of opening a craft coffee roasting business. In June 2014, Stoked Roasters was born, nestled in Hood River, OR. A second location is now open in Park City, UT.


I've always wanted to inspire the masses to get outside. Through that process, I have taken on large projects that take my body to the extreme, in the hopes of encouraging others.

Find Jax Mariash online