Delaware Marathon

Wilmington, DE, USA • April 19, 2026
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partly-cloudy-day Partly cloudy throughout the day.

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The Delaware Marathon Running Festival is an excellent assembly of races for all ages and skill sets. Runners enjoy the best of Wilmington, from the majestic views along the riverfront and through downtown (which could be considered the financial center of the United States). The marathon is challenging, yet BQ-enabling and includes the scenic Jack Markell Trail. The half covers first 13 miles of the full marathon and the 10K and 5K run on the same day amplifies the race day buzz. All include access to brilliant post-race festivities in a beautiful park setting. Source

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When is the 2026 Delaware Marathon?

The 2026 Delaware Marathon will be held on Sunday April 19, 2026.

Is the Delaware Marathon a Boston Marathon Qualfier?

Yes, the Delaware Marathon is an official Boston Marathon qualifier.

What is the time limit for the Delaware Marathon?

The time limit for the Delaware Marathon is 6 hours.

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Historical Weather & Results

RunScore
Run Score: 8
Temp
67°F
Min/Max
55°/68°F
Dew
48°F
Days of Rain
4/21
Wind
12mph
Tap a row for details.
YearLow / HighRain

Delaware Marathon 2025 Weather History

Cloudy skies throughout the day.

2025
fog
49°/ 55°-
Run Score: 8

Delaware Marathon 2024 Weather History

Clear conditions throughout the day.

2024
clear-day
40°/ 50°-
Run Score: 8

Delaware Marathon 2023 Weather History

Partly cloudy throughout the day with early morning rain.

2023
clear-day
54°/ 66°-
Run Score: 8

Delaware Marathon 2022 Weather History

Clear conditions throughout the day.

2022
clear-day
54°/ 72°-
Run Score: 8

Delaware Marathon 2021 Weather History

Partly cloudy throughout the day.

2021
clear-day
42°/ 65°-
Run Score: 8

Delaware Marathon 2019 Weather History

Partly cloudy throughout the day with morning rain.

2019
cloudy
56°/ 63°Light
Run Score: 8

Delaware Marathon 2018 Weather History

Clearing in the afternoon with late afternoon rain.

2018
cloudy
49°/ 67°-
Run Score: 8

Delaware Marathon 2017 Weather History

Partly cloudy throughout the day.

2017
clear-day
48°/ 69°-
Run Score: 9

Delaware Marathon 2016 Weather History

Clearing in the afternoon with morning rain.

2016
rain
53°/ 69°Light
Run Score: 7

Delaware Marathon 2015 Weather History

Partly cloudy throughout the day with afternoon rain.

2015
cloudy
64°/ 76°-
Run Score: 8

Delaware Marathon 2014 Weather History

Clear conditions throughout the day with early morning rain.

2014
clear-day
61°/ 75°-
Run Score: 8

Delaware Marathon 2013 Weather History

Clearing in the afternoon with early morning rain.

2013
partly-cloudy-day
57°/ 64°-
Run Score: 8

Delaware Marathon 2012 Weather History

Clear conditions throughout the day.

2012
clear-day
58°/ 77°-
Run Score: 8

Delaware Marathon 2011 Weather History

Partly cloudy throughout the day with rain.

2011
cloudy
63°/ 70°-
Run Score: 8

Delaware Marathon 2010 Weather History

Partly cloudy throughout the day.

2010
partly-cloudy-day
57°/ 70°-
Run Score: 8

Delaware Marathon 2009 Weather History

Partly cloudy throughout the day with rain clearing later.

2009
rain
55°/ 62°Light
Run Score: 7

Delaware Marathon 2008 Weather History

Becoming cloudy in the afternoon with rain.

2008
clear-day
55°/ 66°Light
Run Score: 8

Delaware Marathon 2007 Weather History

Partly cloudy throughout the day.

2007
clear-day
57°/ 71°-
Run Score: 8

Delaware Marathon 2006 Weather History

Clear conditions throughout the day.

2006
clear-day
47°/ 70°-
Run Score: 8

Delaware Marathon 2005 Weather History

Partly cloudy throughout the day with early morning rain.

2005
partly-cloudy-day
63°/ 74°-
Run Score: 8

Delaware Marathon 2004 Weather History

Partly cloudy throughout the day with early morning rain.

2004
partly-cloudy-day
66°/ 76°-
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.

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

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