Winter Carderock Half
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Event overview
The 2026 Winter Carderock event on January 10, 2026 features three race distances:
- 5k
- 10k
- Half marathon
The event takes place at Carderock Recreation Area on the Chesapeake & Ohio Canal Towpath in Potomac, MD. Points from the races count toward the Year-Long 5k, Endurance, and Back of the Pack Series and toward a Winter Series. Walkers and strollers are welcome. Runners receive a finisher’s medal, a technical (Dri-fit) event shirt, and chip timing.
Registration fees listed by the organizer are: 5k $30 (after Dec 31 $35), 10k $45 (after Dec 31 $50), Half $65 (after Dec 31 $70). T-shirts are guaranteed for runners registered before Dec 26; additional shirts may be available after that date on a first-come, first-served basis.
Course, services and logistics
All three routes are out-and-back on the C&O Canal path, a light gravel dirt trail, with minimal elevation gains. Water and Gatorade availability is listed as subject to change. Water stations are provided as follows: ten stations on the half marathon at approximate mile markers 1.55, 2.7, 4.9, 5.3, 6.15, 6.95, 7.8, 8.2, 10.4, and 11.55; four stations on the 10k at about 1.55, 2.7, 3.5, and 4.65; one station on the 5k near mile 1.55. The half marathon has a completion time limit of 3:15.
Packet pickup is available at the event; there is no on-site race registration. Live results will be posted on Athlinks and final results with series points will be posted to the organizer’s website the Monday after the race. Parking is available in four lots at Carderock; the organizer provides GPS coordinates 38.972563, -77.198738. Volunteers are asked to arrive about 60 minutes before the first race. Visit the organization's website for the most recent information.