Maryland · Marathon · Half Marathon · 10K

Lock 2 Lock Marathon/Half Marathon/10k

Lock 2 Lock Marathon/Half Marathon/10k is a marathon, half marathon, 10K and 5K event held in Williamsport, Maryland. Its next confirmed date is Saturday, September 11, 2027. About 128 runners take part across all distances.

Race day
September 11, 2027
Location
Williamsport, MD
Field size
~128 runners

Race details

Date
Saturday, September 11, 2027
Distances
Marathon, Half Marathon, 10K, 5K
Field size
About 128 runners
Registration
runsignup.com
Official website
2lowerunco.com

Registration, course & weather

Start time
7:30 AM EDT
Course profile
Out-and-back course; Trail surface; Boston qualifier

About the Lock 2 Lock Marathon/Half Marathon/10k

What: 5th Annual Lock 2 Lock Marathon, Half Marathon and 10K When: Saturday, September 12, 2026 Where: Entirely along the C&O Canal Towpath in Williamsport, Maryland All three races take place on the C&O Canal towpath. The start/finish area will be Lock 44 (DO NOT USE FOR PARKING). This is a BQ certified course! 2026 times can be used for 2027. The course certification number is MD22006NP. 2027 BQ Standards Marathon – race details https://www.strava.com/routes/3038509126320956732 Course Map The…

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Lock 2 Lock Marathon/Half Marathon/10k: common questions

When is the Lock 2 Lock Marathon/Half Marathon/10k?
The next confirmed date is Saturday, September 11, 2027.
Where is the Lock 2 Lock Marathon/Half Marathon/10k held?
In Williamsport, Maryland.
What distances does the Lock 2 Lock Marathon/Half Marathon/10k offer?
Marathon, Half Marathon, 10K and 5K.
How many people run the Lock 2 Lock Marathon/Half Marathon/10k?
About 128 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
How do I register for the Lock 2 Lock Marathon/Half Marathon/10k?
Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
Is registration open for the Lock 2 Lock Marathon/Half Marathon/10k?
Registration status as last checked October 30, 2026: opens soon.
What time does the Lock 2 Lock Marathon/Half Marathon/10k start?
7:30 AM EDT.
What is the course like at the Lock 2 Lock Marathon/Half Marathon/10k?
Out-and-back course; Trail surface; Boston qualifier.