
Williamsport, United States of America · Saturday 12 September 2026
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 race will start at 7:30 a.m. on September 12, 2026. Cutoff time is 3:00 p.m. (allowing for a pace of 17 minutes and 11 seconds per mile. Runners will start near Lock 44 and travel in a generally southeasterly direction for 6.56 miles to Lock 43 (exact point to be specified, marked and staffed by event volunteers), then turn around and travel back to Lock 44. Course elevation is no more than 40 feet for the entire distance. Runners will complete this out-and-back loop twice. Aid stations will be at miles 2, 4, 6.56, 9.12, 11.12, 13.12, 15.12, 17.12, 19.68, 22.24, 24.24 and finish line. AS will be stocked with water, Gatorade Endurance, pickle juice, potato chips, and other TBD snacks. There will also be a tarp at the start/finish line where you can leave gu s, bottles, or other race day needs. Half Marathon details https://www.strava.com/routes/3038509126320956732 Course Map The race will start at 8:00 a.m. on Sept. 12, 2026. Cutoff time is 1:00 p.m. Runners will start near Lock 44 and travel in a generally southeasterly direction for 6.56 miles to about Lock 43, then turn around and run back to Lock 44. They will complete this out-and-back loop one time. Course elevation is no more than 20 feet for the entire distance.Aid stations will be at miles 2, 4, 6.56, 9.12, 11.12, and finish line. AS will be stocked with water, Gatorade Endurance, pickle juice, potato chips, and other TBD snacks. 10K details https://www.strava.com/routes/3038508438366518588 Course Map The race will st
Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
Lock 2 Lock Marathon/Half Marathon/10k is a half marathon held in Williamsport, United States of America, scheduled for Saturday 12 September 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level. For registration and full race details, visit the official Lock 2 Lock Marathon/Half Marathon/10k website.
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Lock 2 Lock Marathon/Half Marathon/10k is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Lock 2 Lock Marathon/Half Marathon/10k is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Lock 2 Lock Marathon/Half Marathon/10k against other half marathons to find the right race for your goals.
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