Michigan · 50 Miler · 50K
Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay
Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay is a 50 Miler and 50K event held in Caseville, Michigan. Its next confirmed date is Saturday, April 24, 2027. About 3,636 runners take part across all distances.
- Race day
- April 24, 2027
- Location
- Caseville, MI
- Field size
- ~3,636 runners
Race details
- Date
- Saturday, April 24, 2027
- Location
- Caseville, Michigan
- Distances
- 50 Miler, 50K
- Field size
- About 3,636 runners
- Course
- 500 ft gain
- Registration
- runsignup.com
Registration, course & weather
- Registration status
- Open
- Start time
- 6:27 AM EDT
- Course profile — 50 Mile
- Point-to-point course; Mostly road, some trail; Not USATF certified
- Course profile — 50K
- Out-and-back course; Mostly road, some trail; Not USATF certified
About the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay
Thumb Coast Ultra & Relay – April 24, 2027 Thumb Coast Ultra & Relay is a one-of-a-kind spring ultramarathon in Michigan’s Thumb. On Saturday, April 24, 2027, runners and ruckers will take on the challenge of racing from Lake Huron in Harbor Beach to Saginaw Bay in Caseville in the 50 Mile division—or team up with friends for the 50 Mile Relay. The 50K features a flat out-and-back course starting and finishing in Caseville. This race offers the rare opportunity to run point-to-point across the …
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Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay: common questions
- When is the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay?
- The next confirmed date is Saturday, April 24, 2027.
- Where is the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay held?
- In Caseville, Michigan.
- What distances does the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay offer?
- 50 Miler and 50K.
- How many people run the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay?
- About 3,636 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay?
- Yes — registration is open. Listed fee for the longest distance, $160 (from runsignup.com, checked October 6, 2026).
- What time does the Thumb Coast Ultra & Relay - 50 Mile, 50K, & 50 Mile Relay start?
- 6:27 AM EDT.
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