Aspen Valley Marathon

Embark on an unforgettable journey through the heart of the Rocky Mountains at the Aspen Valley Marathon on July 25, 2026. Offering full marathon, half marathon, and 5K distances, this premier event in Aspen, CO, is renowned as a fast, net-downhill Boston Marathon Qualifier, making it an ideal choice for runners chasing a personal best. Participants can expect typical race day conditions with highs around 76°F and lows around 49°F, and only a 9% chance of precipitation.

The full marathon kicks off from Wagner Park in Aspen at nearly 8,000 feet, descending approximately 1,400 feet to the finish line at Lions Park in Basalt. The course primarily follows the scenic Rio Grande Trail, a converted rail corridor that is about 80% paved and 20% hard-packed dirt. Runners will be captivated by breathtaking scenery, winding through alpine forests, alongside the Rio Grande River, and past stunning mountain views, ranches, and occasional cliffs and waterfalls. While mostly downhill, the high-altitude start adds a unique challenge, and some rolling sections and gradual inclines appear in the later miles.

The Aspen Valley Marathon is celebrated for its intimate atmosphere and exceptional runner support. Thirteen aid stations are strategically placed roughly every two miles along the marathon course, offering water, Gatorade, and basic first aid, with some also providing gels, waffles, and fruit. Volunteers are consistently praised for their enthusiasm and support. After crossing the finish line, runners can celebrate their achievement at a vibrant after-party featuring live music, champagne, and delicious local food, capping off a truly memorable racing experience.