The Rock CF Thumb Coast Marathon, Half Marathon, and 5K

Trivium Racing logo

From Trivium Racing

  • Date Sun 8th November 2026
  • Time 8:00AM EST
  • Location Port Austin, Michigan
  • Price $27.00 - $102.70
  • Races 9 races
  • Distances Marathon, Half Marathon, 5km

Event summary

Get ready to lace up your running shoes for the Rock CF Thumb Coast Marathon, Half Marathon, and 5K, taking place on Sunday, November 8, 2026, in the charming town of Port Austin, Michigan. Organized by Trivium Racing, this exciting event features a flat and fast USATF-certified course that spans across Michigan's picturesque Thumb. Whether you're aiming for a personal record, running your first race, or simply looking for a fun fall race-cation, this event has something for everyone!

Participants can choose from three race distances: the full Marathon, the Half Marathon, and the 5K, each designed to showcase the stunning scenery and small-town hospitality of the area. The Marathon is not only a Boston Qualifier but also features pace teams from Beast Pacing to help you achieve your goals. Starting in Caseville for the Marathon, Sleeper State Park for the Half, and downtown Port Austin for the 5K, this race delivers an unforgettable experience while supporting a great cause. With every registration benefiting the Rock CF Foundation, you’ll be running to improve the lives of those living with cystic fibrosis. Don’t miss out on this incredible opportunity—register today and join us for a day of fun

Organiser's Description

ROCK CF THUMB COAST MARATHON, HALF MARATHON & 5K NOVEMBER 8, 2026

The Rock CF Thumb Coast Marathon, Half Marathon, and 5K is coming to Michigan on Sunday, November 8, 2026. This second year event offers a flat, fast, fully paved, USATF-certified course stretching across Michigans Thumb. The Marathon is a Boston Qualifier, and both the Marathon and Half will include pace teams from Beast Pacing to help you hit your goals. Starting in Caseville and finishing in downtown Port Austin, this point-to-point race delivers the perfect combination of speed, scenery, and small-town charm. Whether youre chasing a PR, running your first race, or planning a fall race-cation, the Rock CF Thumb Coast Marathon has it all.


RACE DETAILS

DATE: Sunday, November 8, 2026
DISTANCES: Marathon, Half Marathon, 5K
LOCATIONS: Marathon starts in Caseville, Half Marathon in Sleeper State Park, 5K in downtown Port Austinall finishing in Port Austin, Michigan
COURSE: Fully paved, flat, USATF-certified; Marathon is a Boston Qualifier

WHY RUN ROCK CF THUMB COAST MARATHON?

* Fast & Flat: The Marathon and Half feature fully paved, USATF-certified courses, ideal for personal bests and Boston qualification.
* Pace Teams: Beast Pacing will guide Marathon and Half Marathon participants with consistent splits.
* Cool November Temps: Crisp, race-ready weather on Michigans Thumb sets the stage for strong performances.
* Run for a Cause: Every registration supports the Rock CF Foundation and its mission to improve the lives of people living with cystic fibrosis.
* Unique Experience: Traverse Michigans Thumb from one side to the other, while 5K runners loop around downtown Port Austin and finish in time to cheer on the Half and Full finishers.
* Race Extras: Participant swag includes exclusive gear, plus referral incentives that give you money back when friends join.
* Destination Vibes: Enjoy a fall weekend on Michigans Thumb Coast, complete with small-town hospitality, Lake Huron views, and a lively finish line atmosphere.


MORE THAN JUST A RACE

Your experience at the Rock CF Thumb Coast Marathon goes beyond the miles. Every step helps fund the Rock CF Foundation [https://www.letsrockcf.org/], a nonprofit dedicated to supporting individuals living with cystic fibrosis through awareness, advocacy, and action. By racing with us, youre not only pushing your own limitsyoure helping power life-changing programs and research.


Ready to run Michigans Thumb? Dont waitregister today for the Rock CF Thumb Coast Marathon, Half Marathon, and 5K on November 8, 2026 and be part of a flat, fast, meaningful race experience on the shores of Lake Huron.

Races

  • Marathon

    Incl. $7.70 Fee & Crewneck

    Sun 8th November 2026 (8:00AM EST)

    $102.70

    OPENS 01 JAN 26
  • Economy Marathon

    Incl. $5.90 Fee

    Sun 8th November 2026 (8:00AM EST)

    $70.90

    OPENS 01 JAN 26
    This option is for those that want a great race, but not a race sweatshirt or finisher's medal.
  • Half Marathon

    Incl. $6.50 Fee & Crewneck

    Sun 8th November 2026 (8:30AM EST)

    $81.50

    OPENS 01 JAN 26
  • Economy Half Marathon

    Incl. $5.00 Fee

    Sun 8th November 2026 (8:30AM EST)

    $50.00

    OPENS 01 JAN 26
    This option is for those that want a great race, but not a race sweatshirt or finisher's medal.
  • 5k

    Incl. $5.00 Fee & Crewneck

    Sun 8th November 2026 (9:00AM EST)

    $40.00

    OPENS 01 JAN 26
  • Economy 5k

    Incl. $4.00 Fee

    Sun 8th November 2026 (9:00AM EST)

    $27.00

    OPENS 01 JAN 26
    This option is for those that want a great race, but not a race sweatshirt or finisher's medal.
  • Virtual Marathon

    Incl. $5.00 Fee & Crewneck

    $55.00

    OPENS 01 JAN 26
    Select the Virtual Race option and complete the race distance on your own time. Packets will be mailed.
  • Virtual Half Marathon

    Incl. $5.00 Fee & Crewneck

    $55.00

    OPENS 01 JAN 26
    Select the Virtual Race option and complete the race distance on your own time. Packets will be mailed.
  • Virtual 5k

    Incl. $5.00 Fee & Crewneck

    $55.00

    OPENS 01 JAN 26
    Select the Virtual Race option and complete the race distance on your own time. Packets will be mailed.

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Location

8774 Lake St. Port Austin, Port Austin, 48467, MI, United States

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