Autumn Lake Triathlon
- Date
- August 2, 2026
- Distance
- Triathlon · Relay Triathlon · Aquabike & more
From the Organizer
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.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
86°
Typical Low
67°
Based on US Climate Normals data from Glassboro 2 Ne, 8 mi from the venue.
Host City
About Williamstown, NJ
Elevation
139 ft
Nearest Airport
PHL
Philadelphia International Airport · 20 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Autumn Lake Triathlon, put it on the calendar, and turn “someday” into a start date.
55
Days to train
- Race
- Autumn Lake Triathlon
- Date
- August 2, 2026
Coming Up
More Triathlon races near Williamstown, NJ
Sunset Lake Triathlon #
22 miles away
Birchwood Lakes Triathlon
16 miles away
DQ Triathlon, Duathlon, Aquabike, Aquathlon, & *NEW* Super Sprint Triathlon at Vincentown *#
Sprint
21 miles away
Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon
24 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
Three sports, one race — swim, bike, run in sequence, with transitions that are a discipline of their own.
Open water, open roads, and competition with yourself. Cross the finish line knowing what it took to get there.
Triathlon
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think.
Frequently Asked Questions (FAQs)
- What is the Autumn Lake Triathlon?
- Autumn Lake Triathlon is a triathlon race held in Williamstown, New Jersey on August 2, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more triathlon races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Autumn Lake Triathlon?
- Sunday, August 2, 2026 in Williamstown, New Jersey at 870 W. Malaga Road, Williamstown, NJ. Check the event page for exact start times and wave schedules.
- How do I register for the Autumn Lake Triathlon?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Autumn Lake Triathlon
Aug 2, 2026