Little Patuxent River Half Marathon
Columbia, United States • 31-1 Jan-Feb 2026
Event overview
The Little Patuxent River Half Marathon, 10K & 5K takes place in Columbia, MD on January 31 - February 1, 2026. Races start and finish at the Guilford Pratt Truss Bridge and use the Patuxent and Wincopin trails. The course runs along the Little Patuxent and Middle Patuxent River and is described as tame compared to many other trail races.
- 13.1 miles - Half marathon on the trail system
- 6.55 miles - 10K on the trail system
- 3.1 miles - 5K on the trail system
Race details
The 5K field is capped at 250 runners; the 10K and half marathon fields are capped at 1,000 runners. Age eligibility varies by event: some events are open to ages 7-99, while the half marathon options are open to ages 14-99. Registration includes a long sleeve shirt, a finisher medal and knit gloves. Participants who register for and complete two-event combinations (5K + 10K or 5K + Half Marathon) can earn three finisher medals. The event location is 9175 Guilford Road, Columbia, MD 21046. Registration opens October 31, 2025. Visit the organization's website for the most recent information.