Lock 2 Lock Marathon
Lock 2 Lock Marathon traces the nearly flat C&O Canal Towpath from Williamsport, offering runners a certified Maryland BQ and 7.5-hour window.
Quick facts
- Certified Maryland Boston qualifier
- Nearly flat C&O Canal Towpath
- Historic lock-to-lock course theme
- Seven-and-a-half-hour marathon limit
About the Lock 2 Lock Marathon
Historic canal locks frame this smaller Williamsport race. The marathon is separately entered from the half and 10K, with a generous limit that serves both qualifier attempts and steadier finishes.
Course
The certified route follows the C&O Canal Towpath between lock areas with little elevation change. Packed trail surface, narrow passages and repetitive scenery make focus and footing part of the effort.
Race-day weather
September in western Maryland may start cool and become warm or humid. Rain can soften the towpath, while tree cover limits sun on some sections and traps moisture on others.
Past Lock 2 Lock Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, September 12, 2026 | Results available | Open results |
Your race experience
Ran the 2026 Lock 2 Lock Marathon?
Share what helped you on race day: the course, transport, aid stations or finish area.
Lock 2 Lock Marathon FAQ
When is the Lock 2 Lock Marathon?
We're waiting for the finalized date for the 2027 Lock 2 Lock Marathon. The most recent running was on Saturday, September 12, 2026.
Is Lock 2 Lock Marathon a Boston qualifier?
Yes. Lock 2 Lock Marathon is a Boston Marathon qualifier. To use the result, you must run the certified full-marathon course within the qualifying window and meet the current standard for your age and gender. Meeting the standard lets you apply but does not guarantee entry, and net-downhill courses can receive a time adjustment under current B.A.A. rules. Review the Boston qualifying times and downhill-course rules, or browse upcoming Boston qualifier marathons.
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