The 2026 Lock 2 Lock Marathon has concluded.

Lock 2 Lock Marathon

Race complete
Williamsport, MD, USA · September 12, 2026
cloudy67°·72° high·Calm·Dry
4
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Race Day Weather

cloudy
67°at start
76° high
Breezy
Dry

Warm and humid, adjust pace early

Runners will face a starting temperature of 67°F, climbing to a peak of 76°F, accompanied by high humidity at 80%. With a light wind from the ESE at 10 mph, it will feel warmer, particularly in later laps. Runners should start conservatively to manage the heat and consider hydration strategies early in the race.

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Race Info

The Lock 2 Lock Marathon runs along the flat, tree-lined C&O Canal Towpath in Williamsport, Maryland, out and back between Lock 44 and Lock 43. The marathon covers the 6.56-mile stretch twice, while the half marathon and 10K each run it once from later start times. With no more than 40 feet of total elevation change, the course is Boston Marathon-qualifying certified. The race is organized by 2 Lowe Run Company and a portion of proceeds benefits the Perinatal Bereavement Fund through the Meritus Foundation.

Race weekend

Saturday, September 12
7:30 AMMarathon (26.2 mi)
8:00 AMHalf Marathon (13.1 mi)
8:15 AM10K (6.2 mi)

FAQ

When is the 2026 Lock 2 Lock Marathon?

The 2026 Lock 2 Lock Marathon will be held on Saturday September 12, 2026.

Is the Lock 2 Lock Marathon a Boston Marathon Qualifier?

Yes, the Lock 2 Lock Marathon is an official Boston Marathon qualifier.

What is the time limit for the Lock 2 Lock Marathon?

The time limit for the Lock 2 Lock Marathon is 7.5 hours.

What will the weather be like for the 2026 Lock 2 Lock Marathon?

The forecast calls for a high of 76°F and a low of 66°F with a 0% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
69°F
L:66° H:72°
RunScore
4
Conditions
Rain Freq
33%
1 of 3 yrs
Wind3mph
Dew64°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
70°/79°-
4
2024
partly-cloudy-day
61°/63°Light
6
2023
clear-day
67°/75°-
4