Badgers Autumn Lake Triathlon

AUG

2

2026

Take on swim, bike and run across vineyard trails and lakefront at the Autumn Lake Triathlon in Williamstown, NJ. Events include triathlon, relay, aquabike, duathlon, aquathon and a 5K for all levels.

Sun 2 Aug 2026

Williamstown, New Jersey

Registration

5k Run

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

The Autumn Lake Triathlon is scheduled for Sunday, August 2, 2026, in Williamstown, New Jersey. The event program includes a triathlon, relay triathlon, aquabike, duathlon, aquathon, and a 5K run. Registration for the events opens November 30, 2025. The venue is listed as 870 W. Malaga Road, Williamstown, NJ 08094.

Course details and distances

The race begins with a 0.4 mile swim in a spring-fed lake on the property. The bike segment covers 13 miles on flat roads that include large bike lanes. The run is a 5K held on the Autumn Lake Winery property and follows trails around two lakes and through the vineyard. Trail surfaces include hard packed dirt, some grass, sand, and loose dirt. Visit the organization's website for the most recent information.