Three Creeks Half Marathon

Lace up for the scenic Three Creeks Half Marathon on Sunday, April 5, 2026, in Englewood, Colorado. This 13.1-mile event, organized by Racing Underground, promises a memorable journey through the beautiful Cherry Creek State Park. Runners will traverse a picturesque course following the banks of Cherry Creek, Windmill Creek, and Cottonwood Creek, experiencing a delightful mix of wide dirt trails, winding paved paths, and paved roads. While often celebrated as a flat and fast course with a minimal elevation gain of around 253 to 291 feet, some runners note the presence of "significant hills" and sections of "loose gravel," as well as potential for sun exposure and headwinds, particularly in the later miles. Typical race day conditions in early April feature comfortable highs around 60F and lows near 33F, with a low 5% chance of precipitation, making for ideal running weather, though conditions can vary.

The Three Creeks Half Marathon is renowned as "Denver's best spring half marathon" and offers a well-supported experience. Participants can expect seven to eight aid stations strategically placed approximately every two miles, providing water and Hammer Heed, with Hammer Gel available at miles 6.5 and 10. Toilets are also conveniently located at the start/finish area and at several points along the course. The course is USA Track & Field certified, ensuring a legitimate race for those aiming for personal bests. Adding to the race's appeal, a two-person relay option is available, allowing teams to conquer the 13.1-mile distance together.

All finishers are celebrated with custom medals, and live online tracking with split times at 2.5, 6.5, and 10 miles allows spectators to follow along. The race starts and finishes at the Smoky Hill Lot, also known as Hobie Hill, within Cherry Creek State Park. This long-standing event, now in its 13th year, provides a fantastic opportunity to enjoy the spring scenery and challenge yourself on a varied and engaging course.