Rock Hawk
Castle Rock, United States • 29 Aug 2026
Event overview
Rock Hawk Trail Races take place Saturday, August 29, 2026, at Philip S. Miller Park in Castle Rock, Colorado (1375 W Plum Creek Pkwy). The event offers four trail distances on the Miller Park and Ridgeline Trail systems. The courses use rolling, mostly non-technical singletrack and multiuse trails and include sections with scenic views. A portion of race proceeds benefits Castle Rock open spaces and partner charities.
Course details and logistics
- 50K - 31.2 miles; total elevation gain 3,325 ft; max elevation 6,635 ft.
- 25K - 15.6 miles; total elevation gain 1,667 ft; max elevation 6,635 ft.
- 10K - 6.2 miles; total elevation gain 744 ft; max elevation 6,612 ft.
- 5K - 3.1 miles; total elevation gain 342 ft; max elevation 6,578 ft.
There are two cup-free aid stations on course that runners may pass multiple times depending on distance. Aid stations provide water, Tailwind electrolyte drink, sweet and salty snacks, and fruit. Runners may leave a weather-sealed drop bag at the start/finish area. Crew and pacer rules vary by distance; for the 25K the permit does not allow crew on course and unauthorized crew assistance can result in disqualification. Pacers for some distances must carry the required runner gear and complete a gear check before pacing. Time limits apply for each distance. Visit the organization's website for the most recent information.