Thumb Coast Ultra

APR

25

2026

Point-to-point ultramarathon across Michigan’s Thumb on April 25, 2026, featuring a 50 mile from Harbor Beach to Caseville and a 50K out-and-back in Caseville. Relay, ruck, virtual and pacer options, stocked aid stations, and an award for beating sunset.

Sat 25 Apr 2026

Caseville, Michigan

Registration

50 miles 50 kilometers

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

Thumb Coast Ultra & Relay : April 25, 2026

Thumb Coast Ultra & Relay is a multi-event ultramarathon in Michigan’s Thumb region held on April 25, 2026. The event includes multiple entry options for runners and ruckers over long distances and provides marked courses and support along the route.

The 50 mile division is a point-to-point course that moves across the Thumb from Harbor Beach on Lake Huron to the Saginaw Bay finish in Caseville. The 50K is an out-and-back course that starts and finishes at Caseville County Park. The 50 mile route is composed mostly of dirt roads with some paved and unimproved park sections; it registers about 500 feet of elevation gain. The 50K uses unimproved and gravel roads.

Race services include well marked routes, fully stocked aid stations with water, Tailwind, gels, and real food, race photography, post-race food, and event jackets and medals for finishers. The event offers generous cutoff times and additional recognition for 50 mile finishers who complete the course in daylight. Relay teams, ruck divisions, virtual entries, and pacers are available, and volunteers staff aid stations and event operations.

Distances and event options Visit the organization's website for the most recent information.