THE ROCK CF RIVERS HALF MARATHON IS BACK!
 
Sunday, March 9, 2025

Rock CF is hitting the island for the 14th Annual Rivers Half Marathon & 5K Run/Walk for all to come and help us outrun cystic fibrosis!

Rock CF is a community, thousands strong, changing the face of what living with cystic fibrosis looks like and giving those living with CF the tools to not only survive, but thrive. 100% of all proceeds support the mission of the Rock CF Foundation.

Caps for 2025
Half Marathon Cap = 800
5K Run/Walk Cap = 500

HALF MARATHON 

Start Time: 8:00am

Start Location: Grosse Ile HIGH School 

Finish Location: Grosse Ile HIGH School

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5K RUN/WALK

Start Time: 8:15 am

Start Location:  Grosse Ile Airport 

Finish Location: Grosse Ile HIGH School

• Buses will take 5K participants that park at GI Township Lots back from the Finish!

 

VIRTUAL RUN

We will be sending out packets the week of the race so that you can participate with us from wherever you are! Whether that be a walk around the block or a full half marathon, we can't wait to see what you accomplish. Be sure to tag us on our socials @LetsRockCF so we can share your journey and runs!