About This Race
The Dawn to Dusk Endurance Run stands as Northeast Wisconsin's original timed endurance trail event, offering runners a unique format centered around time-based challenges rather than fixed distances. Held at Camp Sinawa near Valders, this multi-day event presents five distinct options ranging from a 6-hour introductory challenge to the full 24-hour test of endurance. The race's distinctive schedule follows natural light patterns, with some events starting at sunrise and others transitioning through sunset and into the following dawn. With over a decade of history dating back to 2011, this event has established itself as a reliable fixture in the Midwest ultra calendar. The relatively flat course with minimal elevation gain makes it accessible to runners seeking their first timed ultra experience, while the longer formats provide seasoned endurance runners with opportunities to test their limits in a supportive, low-key environment. The camp setting allows for unique amenities like cabin rentals, creating a community atmosphere that extends beyond the typical race weekend.
The course consists of a 4.5-mile loop that includes a scenic section along the lake at Camp Sinawa. The route offers minimal elevation challenge with only 330 feet of gain per loop, making it well-suited for runners focused on distance accumulation rather than technical terrain navigation. The loop format allows for excellent spectator and crew access while providing consistent aid station support.
Practical Info
Late June in Wisconsin typically brings warm, humid conditions with temperatures ranging from the 60s at dawn to 80s during the day.
GRB - Green Bay Austin Straubel International Airport
Camp Sinawa offers cabin and bunk rentals for the weekend. Additional lodging available in nearby Manitowoc and Green Bay areas.
Best For
Notable Features
The race's time-based format and natural light scheduling create a unique experience in the ultra running world. The camp setting provides overnight accommodation options and a community atmosphere that extends well beyond typical race weekends. With packet pickup available both Friday evening and early Saturday morning, the event accommodates various travel schedules while maintaining its distinctive sunrise start tradition.