The 2025 Tromptown Marathon has concluded.

Tromptown Marathon

Race complete
DeRuyter, NY, USA · September 21, 2025
partly-cloudy-day50°·73° high·Breezy·Dry
8
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Race Day Weather

partly-cloudy-day
50°at start
73° high
Breezy
Dry

Cool start, warming trend ahead

Runners will face a temperature rise from 48°F at the start to a high of 73°F. With winds from the SE at 12 mph, gusting to 25 mph, and humidity at 62%, pacing adjustments are advised as the race progresses. Runners should hydrate frequently and consider starting conservatively to manage the heat later in the race.

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Race Info

This will be the 4th year for a new time, day and season for the Marathon. We added the marathon to accompany the half-marathon last year. The two runs are some of New York State's, even nationally challenging, and yet scenic runs. The half-marathon takes you through parts of three counties, the marathon through four counties. That curious fact for the marathon should put us as number one in the nation in that category. Source

Area Map

Course Map

FAQ

When is the 2025 Tromptown Marathon?

The 2025 Tromptown Marathon will be held on Sunday September 21, 2025.

Is the Tromptown Marathon a Boston Marathon Qualifier?

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

What will the weather be like for the 2025 Tromptown Marathon?

The forecast calls for a high of 73°F and a low of 45°F with a 0% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
69°F
L:55° H:70°
RunScore
8
Conditions
Rain Freq
33%
1 of 3 yrs
Wind8mph
Dew55°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
clear-day
49°/73°-
8
2024
clear-day
61°/75°-
8
2023
cloudy
54°/61°Light
7