Cannonball Marathon

Greensboro, NC, USA • October 18, 2025
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partly-cloudy-day Partly cloudy throughout the day.

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For over 20 years, The First Horizon Bank Cannonball Marathon is one of the longest running endurance events in North Carolina and a Boston Qualifier! The backdrop for the race is Country Park and the beautiful north Greensboro countryside. Country Park, with the Greensboro Science Center next door, is a great place for the family to hang out and enjoy the post-race celebration! Source

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When is the 2025 Cannonball Marathon?

The 2025 Cannonball Marathon will be held on Saturday October 18, 2025.

Is the Cannonball Marathon a Boston Marathon Qualfier?

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

What is the time limit for the Cannonball Marathon?

The time limit for the Cannonball Marathon is 6 hours.

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Historical Weather & Results

RunScore
Run Score: 8
Temp
68°F
Min/Max
53°/68°F
Dew
49°F
Days of Rain
1/8
Wind
4mph
Tap a row for details.
YearLow / HighRainResults

Cannonball Marathon 2024 Weather History

Clear conditions throughout the day.

2024
partly-cloudy-day
48°/ 72°-
Run Score: 9

Cannonball Marathon 2023 Weather History

Partly cloudy throughout the day with a chance of rain throughout the day.

2023
rain
58°/ 63°Light
Run Score: 6

Cannonball Marathon 2022 Weather History

Clear conditions throughout the day.

2022
partly-cloudy-day
37°/ 67°-
Run Score: 8

Cannonball Marathon 2021 Weather History

Partly cloudy throughout the day.

2021
cloudy
52°/ 66°-
Run Score: 8

Cannonball Marathon 2019 Weather History

Partly cloudy throughout the day.

2019
partly-cloudy-day
58°/ 77°-
Run Score: 8

Cannonball Marathon 2018 Weather History

Clearing in the afternoon.

2018
partly-cloudy-day
55°/ 65°-
Run Score: 8

Cannonball Marathon 2017 Weather History

Partly cloudy throughout the day.

2017
cloudy
60°/ 66°-
Run Score: 8

Cannonball Marathon 2016 Weather History

Partly cloudy throughout the day.

2016
cloudy
55°/ 67°-
Run Score: 9
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