AZ Onyx by Double Black Events

16300 McDowell Mountain Park Dr
Fort Mcdowell, AZ 85264

Running > Obstacle Race

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Event Description

Join us in the beautiful mountainous deserts of McDowell Mountain Regional Park in Arizona to be part of the very first Onyx event.  McDowell offers incredible views of the desert landscape, fantastic temperatures, challenging terrain, lots of sandbags, and just enough climbing to keep things spicy.   

On October 15, racers will be put to the test in a trail race like none other.  

Goal:  Get as many points as possible

Duration:  4 hours

The Onyx race is our signature race that completely flips the script on what a trail race can be.  Instead of racing for time, participants race for points.  Points are earned by running designated color-coded out-and-back routes and bringing back either a sandbag or flag that are at the end of each of these routes.  

Each route has different point values and sandbags are worth double the point amount than flags.  The longer the route, the higher the point value.  The goal of the race is to score as many points as possible in a 4-hour time frame.  With various route distances, there becomes an element of strategy and figuring out your strengths.  Racers can choose long routes or short routes and do not have to run all of the routes.  You can even run the same route over and over during the allotted time.  Its a choose-your-own-challenge kind of race!  

For complete info and FAQs on Onyx, visit

Each participant receives:

-A whole lot of free swag items

-Nutrition items from our sponsors

-Finisher awards

-Parking and regional park day pass so you can continue to explore after the event

-Access to well-stocked aid stations

-Professional event photographs and video

-Access to our awesome venue area equipped with our electronic leaderboard, free product from local vendors, and great music

-A shot at the podium and to win up to $1000 in prize money and other awards



Event Location & Accomodations

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