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Thumb Coast Ultra & Relay

Sat April 26, 2025 Caseville, MI 48725 US Directions

50 Mile Relay Info

Relay Rules
  • 50 Mile Relay will start in Harbor Beach, Michigan and finish in Caseville, Michigan
  • Team Size: 2 – 6 People (each member is required to register separately; the first team member to register will be able to create the team name. Additional members will then be able to select the relay team name during registration)
  • Relay “leg” distance is up to the team, but exchanges must be done at an exchange zone only (see chart below for exchange locations)
  • There is only ONE bib per relay team.  Your bib may ONLY be exchanged at the Relay Exchanges.
  • Runners do not have to run an equal number of legs or distances
  • All general athlete rules and gear requirements apply to relay team participants.
  • Each team must provide their own support vehicle, only one vehicle per relay team. No bigger than a 12 passenger van.
  • Team vehicle must have the team’s name and bib number clearly visible on 3 sides of the vehicle at all times. Front, back and one side.
  • Relay team “camping” or hanging out for long times at exchange zones is not allowed. There is limited space at exchange zones, please plan accordingly.
  • Vehicles supporting the relay MUST drive on alternative route provided by Trivium.  This will reduce traffic on specific race course to ensure the safety of our athletes.
  • Review the Relay Guide.
  • One member of the relay team MUST attend the pre-race meeting on Tuesday, April 16th at 7pm. Link will be emailed to all relay participants 1 week prior to the meeting. Attendance will be taken and penalty given if no one from relay team attends.

Relay information updated April 16, 2024.

Click the link below to download a PDF file with live map links for the relay exchange locations AND aid station locations!

Click the icon below to download the attached PDF.

PDF

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