Autumn Lake Triathlon
About this race
The Autumn Lake Triathlon begins with a 0.4 mile swim in a clean, spring-fed lake in the heart of Williamstown, NJ. The 13 mile bike ride is flat and fast and includes roads with large bike lanes. The 5K run will take place on the property of Autumn Lake Winery and will take you through trails (hard packed dirt, some grass, sand, and loose dirt) around two lakes and through the vineyard.
Pick your distance
Running
5K Run
5k trail run
Typical race-day weather
Based on 10 years of Open-Meteo archive data for this event's race dates in Williamstown, plus the 3 days either side.
The sun rises at 6:00 AM and sets at 8:12 PM local time (EDT) in Williamstown on August 2, 2026 — 14h 11m 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.
Reviews
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2026 results — Autumn Lake Triathlon
5K Run · 25 finishers
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Theresa Albertson | 23:00 | 7:25 /mi |
| 2 | Bill Kearsley | 25:04 | 8:05 /mi |
| 3 | Jason Hunsberger | 26:36 | 8:35 /mi |
| 4 | J. Mullen | 27:23 | 8:50 /mi |
| 5 | John DeCosta | 27:30 | 8:52 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
All results by year
Other races near Williamstown
Different organizers, within 40 miles, in the next three months
BadgerPalooza
Williamstown Turkey Trot 5K
Hangover Run 5K
Cross Keys Runway 5K
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, 8 Williamstown events
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