Find Other Races In Michigan
Thumb Coast Ultra & Relay Race Description
Beat the Sunset in Caseville, Michigan!
Michigan’s Thumb is full of quiet roads, big skies, and unexpected beauty—and the 2026 Thumb Coast Ultra & Relay is your chance to run from one Great Lake to another.
On Saturday, April 25, take on a point-to-point 50 Mile from Lake Huron in Harbor Beach to Saginaw Bay in Caseville, a fast and scenic 50K out-and-back, or rally your crew for the 50 Mile Relay and chase the sun across the Thumb. Can you beat sunset to the finish?
This route follows mostly flat dirt roads through open farmland and lakeshore views, with generous cutoff times and fully stocked aid stations. It’s an ideal challenge for beginners going long for the first time, seasoned vets chasing a PR, or teams ready to take on 50 miles together. Whether you’re running, rucking, or relaying—this is your spring adventure.
Additional awards for 50 Mile finishers who “beat the sun.”
Let’s go coast to coast—Thumb-style.
Get ready for the Thumb Coast Ultra & Relay
Race Countdown
Share this Caseville Race
Share on Facebook
Share on X
Share on Pinterest
Share on LinkedIn
Share via Email
Share via SMS Text
Add to my calendar
2027-04-24 06:27:00
2027-04-24 06:27:00
America/New_York
Thumb Coast Ultra & Relay
Caseville, MI
Hannah Gaffner
Add to my calendar
Thumb Coast Ultra & Relay Where & When
-
- Location: 6400 Main St, Caseville, MI 48725
- Race Date: 2027/04/24 06:27:00 AM (Saturday)
Other Races You May Want to Consider
Oral Cancer Awareness of Michigan 5K!
- Sep 19th, 2026
Please join us for our 10th annual 5K Walk/Run on Saturday, September 19, 2026 @ 9 a.m. through the scenic pathways of Kensington Metro Park. The course starts at the West Boat Launch Picnic Shelter (signage will be provided to guide you... read more
Edmore Potato Festival 5K Tater Trot and 1 Mile Small Fry Run
- Sep 19th, 2026
Break out the pearls and pinstripes and join us for the Jazz Age Jamboree 5K Tater Trot and 1 Mile Small Fry Run!
Wear your best 20s era costume for a chance to win a prize!
It’s the bee’s knees of fun runs—don’t be a flat ti... read more
Oral Cancer Awareness Michigan 5K!
- Sep 19th, 2026
Please join us for our 10th annual 5K Walk/Run on Saturday, September 19, 2026 @ 9 a.m. through the scenic pathways of Kensington Metro Park. The course starts at the West Boat Launch Picnic Shelter (signage will be provided to guide you... read more
Growler Gallop Atwater
- Sep 27th, 2026
Start and Finish at Atwater Brewery!
Feel the energy of Detroit and camaraderie of the running community at the 12th Annual Growler Gallop 10 Mile & 5K! From the moment you arrive at Atwater Brewery, you’ll be immersed in the excitem... read more
Winter Trail Fest Eastside Half Marathon & 5 Mile
- Feb 13th, 2027
Join Trivium for WTF Eastside!
Some call it the Winter Trail Fest. Others just think, “What the F…?!”
Join us at Island Lake in Brighton, Michigan for a Half Marathon or 5 Mile run or ruck designed to embrace the messiest, ... read more
Carpe Diem - Carpe Noctem Half Marathon & 10K
- Apr 3rd, 2027
Seize the Day, Seize the Night!
Run trails by day, race again by headlamp! Join us on Saturday, April 11, 2026 at Proud Lake State Recreation Area for Carpe Diem – Carpe Noctem—a one-of-a-kind trail experience ... read more
1000Games
- Dec 1st, 2026
1000Games is an innovative browser gaming website that brings together over 1000 free online games in one easy-to-use platform. Our mission is to make gaming simple, enjoyable, and accessible to everyone. No downloads, no subscriptions, and no compl... read more
Wolverine State 100 Ultra & Relay
- Oct 11th, 2026
From Lake Michigan to Lake Huron—The Journey Continues
After an unforgettable debut in 2025, Wolverine State 100 returns for year two on October 10–11, 2026.
Runners, relay teams, and crews will once again take on the rare chance to... read more
The Rock CF Thumb Coast Marathon, Half Marathon, & 5K
- Nov 8th, 2026
CASEVILLE TO PORT AUSTIN, MICHIGAN
Point-to-point. Fully Paved, USATF Certified Course on Michigan's Thumb Coast.
The Rock CF Foundation and Trivium Racing are excited to bring to life the Thumb Coast Marathon: a flat, fast course feat... read more
Join us at the Thumb Coast Ultra & Relay in April for a great race. The Thumb Coast Ultra & Relay works hard to deliver you a memorable race experience. We would love to hear from you, so consider writing us a review.
Contact Information
If you have any questions or comments for the event directors, click the button below.
Gmail
Yahoo
Outlook
Email
