Mat Fraser to tackle brutal 42-mile Grand Canyon rim-to-rim-to-rim run

Mat Fraser’s next test was not measured in clean-and-jerk numbers or leaderboard points. The five-time CrossFit Games champion took on the Grand Canyon rim-to-rim-to-rim, a 42-mile, 67-kilometer route that drops to the Colorado River, climbs to the opposite rim and then turns around to do it again, with HWPO CEO Matt O’Keefe and coach Josh Godinez alongside him.

The scale alone explains why the route carries such a pull for Fraser and for endurance athletes who see the canyon as a proving ground. Grand Canyon National Park says the average rim-to-rim width is 10 miles, the average depth is 1 mile, the South Rim sits at about 7,000 feet, the North Rim at about 8,000 feet and Phantom Ranch at about 2,400 feet. The National Park Service says the canyon’s elevation changes create major swings in temperature and precipitation, while the Colorado River carved its course through the canyon about 6 million years ago.

That makes every mile a repeated climb through heat, fatigue and logistics. The South Kaibab Trail is open from the South Kaibab Trailhead to Phantom Ranch, but there is no water on the trail. The Bright Angel Trail is open from the Bright Angel Trailhead to Pipe Creek Resthouse, with water at the trailhead year-round and seasonally along the trail, subject to waterline breaks. The North Kaibab Trail is open from Phantom Ranch to the Ribbon Falls trail junction, with the trail north of that junction closed until further notice. For anyone attempting a rim-to-rim-to-rim, hydration, pacing and current closures are not side notes. They are the assignment.

That is also why Fraser remains such a natural fit for this kind of effort. CrossFit lists him as the Fittest Man in History, a five-time champion from 2016 through 2020 and the only male athlete to win five consecutive titles. His appeal has always come from more than dominance on the floor. It comes from the way he keeps choosing tests that reward suffering, repeatable output and the ability to stay sharp when the body wants to back off.

The Grand Canyon run also folds neatly into HWPO’s wider identity. The brand has been pushing a community challenge called Crossing the Canyon, asking participants to log 100,000 steps or 42 miles before May 23 as Fraser, O’Keefe and Godinez attempt the route. The connection reaches back to CrossFit culture too, to The Ranch, the original Games venue from 2007 through 2009, and to the old trail-run image of athletes discovering they were expected to go back out and repeat the course. Fraser’s latest mountain-size effort says the same thing his Games career did: the obsession did not end with retirement, it simply found a different test.