
Founders Half Marathon
Race Date
Dec 14, 2025
Location
Potomac, MD
The Experience
The lowest-priced half-marathon in America! Still a full 13.1 miles and full-service on quality and support! This is race #2 of the DCRR Snowball Series. In past years, it's been the Gar Williams Half Marathon; now it honors all the Club's founders. Course: Out-and-back along C&O Canal Towpath. Previously-USATF certified course, click here for map. We had intended to recertify the course before race day, but ongoing construction in the vicinity of Canal Lock 5 is preventing that. We'll make sure the course is actually measured to account for the slightly-different path through the construction site. Water Stops: There will be two water stops: one at Lock 10 and one at Lock 6. These locations correspond to approximately mile 3, 5, 8, and 10 of the race. You will run by each water stop twice. Registration: Online registration only. Timing and Results: Timing and results will be compiled on a real-time basis and friends and family will be able to track runners throughout the race via social media. We will provide a link for live results in our final instructions to runners.. Fees: Online advance registration through 8 PM the evening before the race (12/13). Note: we are not accepting late registrations after that deadline; we are not accepting walk-up, day-of-race registrations. $0 for club members $10 for non-members. Refund policy for Snowball Series: In the event the race is canceled, pre-paid non-members will receive a credit to be applied to a future Snowball Series race. Location: Carderock Recreation Area (not Park), Carderock, MD. Raceday Timeline: 7:30 Packet Pickup opens 9:00 Race Start 11:00 Awards 12:00 Course Closes Amenities and extras: We will have a great breakfast spread post race, including bagels, cream cheese, Nutella, PB&J, hot chocolate, coffee, tea, Gatorade, bananas, and more. T-shirts and Medals: Come-on people, it's a $10 race... No, there are no t-shirts or medals. Directions: Take the Capital Beltway (I-495), to the Clara Barton Parkway headed west, outside the beltway. Make a right on the first exit which is for both Carderock and the Naval Surface Warfare Center (Carderock Division). Turn left at the stop sign at the top of the ramp to cross the parkway. After passing under the canal, turn right and proceed to the last parking lot. If it's full, park in one of the other lots and walk back to our registration area. Volunteers: We need many volunteers to help coordinate the race events. Please "pay it forward" by helping if you're not running, or have a friend or relative volunteer. Remember, this counts as your Snowball Series volunteer requirement.
Logistics
Race Day
Sunday, December 14, 2025
Start Time
9:00 AM
Start Location
North Parking for Carderock Cliffs, Potomac, MD, 20854
Course Info
Course Type
Loop Course
Terrain
road
Difficulty
Ultra-Flat
Elevation Gain
0'
Net Drop/km
0 m (Flat)
Separation
0.0%
Quality Score
Solid Pick492 years running
~157.5 finishers a year
growing or steady
9% returning runners
2 timing sources
runners from 13 states
winner 1:05:59
typical high 47°F
Race Day Weather
5-year historical avgStart (Low)
31°
Afternoon (High)
47°
Cool conditions — dress in layers, perfect for fast times
0.2"
Precipitation
11 mph
Wind
70%
Humidity
Historical Finish Times
How 315 finishers actually crossed the line across 2 years.
Most recent
2025
Total finishers
315
Median time
1:58:25
Latest turnout
163
States
14
Turnout by year
2024–2025
Hover the histogram to inspect specific finish times.
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