Tromptown Marathon, Half and 5K
Tromptown Marathon, Half and 5K logo

Tromptown Marathon, Half and 5K

DeRuyter, New York, United States View on map
Nov 01, 2026 (America/New_York local time)
Running

About this race

This will be the 6th year for a new time, day and season for the Marathon.  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.

The half-marathon course, of 49 years remains the same, but with new start and finish lines. It includes circling the lake, then the continuation of the sights, sounds, and smells of fresh country air intensity as you leave the dam, near the half-way point. As you head south for the finish line the views unfold of the valley's and the village to the east. 

The marathon takes in the first 12.1 miles of the half-marathon before turning south, then east at about the 17 mile point. Beginning around the 20 mile marker one heads northwest and gradually ascends to Tromptown's own but short "heartbreak hill". From 22-25 miles one is heading west, finish line bound, descending with a wide panoramic view of three valleys and their surrounding hills. The last mile is level in the village.

The marathon and half-marathon are loop courses. They start very near the finish line in front of the school. Both are newly certified. With the new marathon  and moving the start and finish lines for the half-marathon new certifications were required.  

 

Half-Marathon:
 
The half-marathon is the same course as the last 49 years. 
However, all runs start very near the school and all runs finish at the same place in front of the school.

Full Marathon:
 
This marathon is a Boston qualifier
The first 12.1 miles of the marathon course uses the half marathon course.
Both runs are loop courses. Course closes at 2:30 pm
Liquid support every two miles or less.

T-shirts can be purchased for an additional $10

Pick your distance

Running

Marathon

Nov 01, 2026 Marathon 8:00 AM
$50.00
Open

Half Marathon

Nov 01, 2026 Half-Marathon 9:00 AM
$35.00
Open

Typical race-day weather

Based on 9 years of Open-Meteo archive data for this event's race dates in DeRuyter, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 12.9° / Maximum temperature (race-week average) 21.4°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 12.3° / Maximum feels like — heat index / wind chill (race-week average) 21.4°
Peak wind (km/h)
Strongest wind of the day (race-week average)
17.4
Precip (mm)
Precipitation over the day (race-week average)
2.0mm
Humidity
Mean relative humidity (race-week average)
77.2%
Sunrise
Sunrise at the start line on November 1, 2026 (EST)
Sunset
Sunset at the start line on November 1, 2026 (EST)
Daylight
Hours between sunrise and sunset on race day
10h 18m

The sun rises at 6:37 AM and sets at 4:56 PM local time (EST) in DeRuyter on November 1, 2026 — 10h 18m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 2 DeRuyter events

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