St. Luke's Delaware & Lehigh (D&L) Heritage Marathon

Northampton, PA, USA • November 9, 2025
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cloudy Cloudy skies throughout the day.

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Both the marathon and half marathon use the D&L Trail for a majority of their courses. The trail follows the Lehigh River for a gentle net elevation drop with fine gravel or pavement depending on the section. Participants can expect a beautiful trail, joint-friendly terrain, and crisp autumn temperatures. Source

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When is the 2025 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon?

The 2025 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon will be held on Sunday November 9, 2025.

Is the St. Luke's Delaware & Lehigh (D&L) Heritage Marathon a Boston Marathon Qualfier?

Yes, the St. Luke's Delaware & Lehigh (D&L) Heritage Marathon is an official Boston Marathon qualifier.

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Every Monday we break down the top results in the marathon from over the weekend.

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Images provided to TVL by Delaware & Lehigh National Heritage Corridor, Inc. 29% increase in registration in 2024 in what is quickly becoming Lehigh Valley’s premier running and walking race ev…

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Historical Weather & Results

RunScore
Run Score: 9
Temp
49°F
Min/Max
33°/49°F
Dew
32°F
Days of Rain
0/2
Wind
7mph
Tap a row for details.
YearLow / HighRainResults

St. Luke's Delaware & Lehigh (D&L) Heritage Marathon 2024 Weather History

Partly cloudy throughout the day with late afternoon rain.

2024
clear-day
35°/ 54°-
Run Score: 8

St. Luke's Delaware & Lehigh (D&L) Heritage Marathon 2023 Weather History

Clear conditions throughout the day.

2023
clear-day
32°/ 44°-
Run Score: 8
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

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OR
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR