The Grand Mesa Ultras 2026 is an exhilarating trail running event set against the stunning backdrop of Grand Mesa, Colorado, one of the largest flat-top mountains in the world. Organized by dedicated local running enthusiasts at Best Slope Events, this race captures the rugged beauty and challenge of the Rocky Mountains, providing runners with an unforgettable experience. With its varied course profiles and elevation changes, the Grand Mesa Ultras 2026 offers something for everyone, from seasoned ultra-runners to those looking to test their mettle on shorter courses.

Strambecco rates the Grand Mesa Ultras 2026 as one of the Best Trail Running Race Events in the Rockies and one of the Best Trail Running Race Events in Colorado. Unlike many high-cost races, Grand Mesa Ultras works hard to keep the event accessible while still offering premium features, such as sweet T-shirts, custom finisher awards, and post-race food and beverages. The event also boasts competitive cash prizes for the top male and female finishers, with additional rewards for setting course records.

The Grand Mesa Ultras includes three primary race distances: 50 miles, 55K, and 30K, each providing a unique challenge set in the high-altitude terrain of Grand Mesa. Each race starts at the Mesa Top Parking Lot, with staggered start times depending on the distance.

The 50-mile race is the ultimate test of endurance and takes participants on a long, grueling journey across some of Grand Mesa’s most challenging terrain. Runners face 3,971 feet of ascent and descent, navigating through a mix of technical climbs, smooth trails, and lava rock sections. The course starts at 5:00 AM, and participants must complete the race by 8:00 PM, giving them a 15-hour window (18.6 minutes per mile pace). Notable sections include the Crag Crest Trail, where runners will navigate a challenging loop filled with technical descents, and the Flowing Park Loop, which offers sweeping views of the San Juan and Elk Mountains. No pacers are allowed, and participants must be self-sufficient while navigating the course. The top three male and female finishers receive cash prizes of $200, $150, and $125, respectively, with an additional $100 bonus for anyone who sets a course record.

The 55K race offers a slightly shorter but equally demanding course, with 3,376 feet of ascent and descent at an average elevation of over 10,600 feet. Runners start at 7:00 AM, with a 12-hour cutoff to complete the race. This race combines smooth trails with rocky sections, creating a dynamic course that demands both speed and endurance. Top male and female finishers receive cash prizes of $150, $125, and $100, with a course record bonus of $100.

For those seeking a more moderate challenge, the 30K race provides an excellent opportunity to experience the beauty of Grand Mesa without the extreme distance of the other two races. Starting at 7:00 AM with a 7-hour cutoff, runners will navigate 2,503 feet of ascent and descent. The course takes participants through some of the same scenic trails as the longer races, including the Crag Crest Trail, offering spectacular views and technical terrain. Top finishers in the 30K also receive cash prizes of $125, $100, and $75, with a custom finisher award for the top three in each category.

All race distances feature a mix of single-track trails, rocky sections, and open meadows, with aid stations positioned strategically to provide necessary fluids and nutrition. The post-race celebration includes a burger cookout and refreshments courtesy of Palisade Brewing Company, allowing runners to relax and enjoy the camaraderie after a tough day on the trails.