Rock CF Thumb Coast Marathon

Rock CF Thumb Coast Marathon Join the Rock CF Foundation and Trivium Racing on November 8th, 2026 and race in Michigan's thumb! Marathon · Half Marathon · 5K.

Experience the beauty of this storied coastline on a flat, fast, USATF-certified course.

We’re looking for passionate, dependable volunteers to help make race day unforgettable for our 2026 Thumb Marathon runn...
05/27/2026

We’re looking for passionate, dependable volunteers to help make race day unforgettable for our 2026 Thumb Marathon runners.

We especially need help on the course at aid stations and from course marshalls.

If you’ve ever benefitted from the smile, support, or kindness of a volunteer during a race, now’s your chance to return the favor. Whether you're a runner taking the fall off, a supportive friend or family member, or just someone who loves being part of the energy—we’d love to have you on our team.

All volunteers may choose either:
- A donation to a group
- A free future Trivium Racing or Rock CF race entry (Half Marathon distance or shorter)

And all volunteers get this sweet pom hat!

You can register to volunteer at the link below. Thank you!

One of the questions we get a lot with a point-to-point race is how the shuttle system works.Most people park near the f...
05/20/2026

One of the questions we get a lot with a point-to-point race is how the shuttle system works.

Most people park near the finish in Port Austin race morning, then take a shuttle to their start line. You can add the shuttle during registration or later, if you change your mind.

That means when you finish, your car is already there waiting for you.

If you ride the shuttle, and you didn't pick up your bib on Saturday, you can pick up your race packet at shuttle check-in at the finish line. We'll give you a gear check bag that will take your race swag (sweatshirt, etc.) back to the finish line for you. When you finish the race, you'll pick up your gear check bag at the finish line.

Marathon runners start in Caseville. Half Marathon runners start at Sleeper State Park. 5K runners start and finish in Port Austin, so no shuttle needed.

Rock CF Thumb Coast Marathon, Half Marathon & 5K
November 8, 2026

More details at the link in the comments.

You see a wide range of goals on the road to Port Austin.Someone trying to break 4 hours. Someone running their first H...
05/14/2026

You see a wide range of goals on the road to Port Austin.

Someone trying to break 4 hours. Someone running their first Half. Someone moving up from shorter races to see what the Marathon feels like. Someone trying to qualify for Boston.

And then someone who just wants a well-run race on roads where they can settle in and run.

People chasing something big. And people just looking for a race that feels good to be part of.

Rock CF Thumb Coast Marathon, Half Marathon & 5K
November 8, 2026

More details at the link in the comments.

Racing in the Rock CF Thumb Coast Marathon, Half, and 5K supports the amazing work of the Rock CF Foundation. Learn mor...
05/14/2026

Racing in the Rock CF Thumb Coast Marathon, Half, and 5K supports the amazing work of the Rock CF Foundation. Learn more at the link in the comments.

If you just raced this spring, you might already be thinking about what's coming next. Trying to decide if you're doing...
05/08/2026

If you just raced this spring, you might already be thinking about what's coming next. Trying to decide if you're doing another Half. Going for a PR. Going up in distance to the Marathon.

Six months out is a good spot to get a race on your calendar.

Enough time to recover, build back up, and take a real shot at something.

We're six months out from the Rock CF Thumb Coast Marathon, Half, & 5K.

November 8, 2026
Rock CF Thumb Coast Marathon, Half Marathon & 5K
Caseville and Sleeper State Park to Port Austin

More details at the link in the comments.

Just before you make the turn onto Lake Street in Port Austin, you can hear it.Music. Announcer calling out names. Chee...
04/29/2026

Just before you make the turn onto Lake Street in Port Austin, you can hear it.

Music. Announcer calling out names. Cheering. The PR/BQ gong.

If you've got anything left, you kick it in towards the finish.

People stick around. They watch other runners finish and cheer for people they don’t even know.

It’s a small town finish, but it doesn’t feel small.

Rock CF Thumb Coast Marathon, Half, & 5K
November 8, 2026

More details at the link in the comments.

If you're trying to figure out if a smaller race like this works for you...The start line has that same nervous energy.M...
04/08/2026

If you're trying to figure out if a smaller race like this works for you...

The start line has that same nervous energy.

Music playing. People shaking out. You can tell everyone’s ready to go get after it.

But once you’re moving, you can actually settle in.

A few miles in, the field spreads out and you find your rhythm.

There are people around you. Pace groups. Runners going after the same kind of goals.

It’s a good setup if you’re trying to run fast. It’s a good setup if it’s your first.

USATF-certified. Flat course. Built to run well.

Rock CF Thumb Coast Marathon
November 8, 2026

More details at the link in the comments.

If you’re trying to decide if this race works for you, here’s some of the feedback we got after last year:“Great communi...
04/05/2026

If you’re trying to decide if this race works for you, here’s some of the feedback we got after last year:

“Great communication, wonderful course, volunteers at the aid stations were top notch…really everything.”

“This was my first half marathon, and I couldn't have asked for a better day.”

“The race organization was top notch…aid stations and finish line snacks were great.”

We'll be back in the Thumb for the Marathon, Half, and 5K on November 8, 2026 for year two.

Most people are starting to think about their fall marathon around now.If you’re looking for something different from a ...
03/26/2026

Most people are starting to think about their fall marathon around now.

If you’re looking for something different from a big-city race, Thumb Coast is worth a look.

The roads are calm. The field spreads out. You can actually settle into your pace and run your race.

Small towns along the way. Local volunteers who are all in. A finish line waiting in Port Austin.

It’s a good place for a first marathon or half. It’s a good place to chase a time. It’s just a good place to spend a fall morning running on a USATF-certified, Boston Qualifier course.

November 8, 2026
Rock CF Thumb Coast Marathon, Half Marathon & 5K

More details at the link in the comments.

If you’ve never run in Michigan's Thumb in the fall, it’s a pretty special place to be on race morning.The roads are cal...
03/11/2026

If you’ve never run in Michigan's Thumb in the fall, it’s a pretty special place to be on race morning.

The roads are calm. The trees are turning. And once the field spreads out, there’s plenty of space to settle into your pace and run your race.

Rock CF Thumb Coast Marathon isn’t a crowded, big-city event. It’s a smaller race on open roads along Lake Huron, with invested local volunteers, small towns along the way, and a finish line celebration waiting in Port Austin.

Whether you're chasing a goal time, running your first marathon, or just looking for a fall race that feels a little different, this course gives you the room to focus on the miles. The course is USATF certified, and we’ll have pace teams ready to help you chase those big scary goals.

November 8, 2026
Rock CF Thumb Coast Marathon, Half Marathon & 5K

More details at the link in the comments.

Address

Port Austin, MI
48467

Website

Alerts

Be the first to know and let us send you an email when Rock CF Thumb Coast Marathon posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Rock CF Thumb Coast Marathon:

Shortcuts

Share

Category