Rock CF is hitting the island for the 14th Annual Rivers Half Marathon on Sunday, March 9th, 2025 for all to come and help us outrun cystic fibrosis! Join us for a beautiful lap around Grosse Ile, Michigan for our Half Marathon, 5K, or Virtual Run from wherever you are.
100% of all proceeds go towards supporting the mission of the Rock CF Foundation. Learn more and register through our RunSignup page by clicking the button below!
Half Marathon - 800 Person Cap for 2025
Start Time: 8:00am
Start Location: Grosse Ile Middle School
(23270 E. River Rd. Grosse Ile, MI 48138)
Finish Location: Grosse Ile Middle School
*Half Marathon Course Info: There will be a 3 hour and 30 minute time limit for the half marathon. This breaks down to a 16 minute per mile pace. If you wish to continue beyond the limit, you will be on your own with no support provided by the race.
5K Run/Walk - 500 Person Cap for 2025
Start Time: 8:15 am
Start Location: Grosse Ile Airport (South Side of Hangar)- 9601 Groh Rd.- Across from GI Township Shuttle Parking Lots.
Finish Location: Grosse Ile Middle School
* Buses will take 5K participants that park at GI Township Lots back from the Finish!
Virtual Run
As always, we will of course still have our virtual option available! Registrants will receive the race swag, a medal, and bib to run with us from wherever they are. These items will be shipped the week before or week of the race!
Be sure to tag #RockCF so that we can see your incredible efforts!
If you have cystic fibrosis, you get to run for free! Please email emily@letsrockcf.org so that we can get you all set.
KEVIN WILSON MEMORIAL MILE
The Rock CF Rivers Half Marathon wouldn’t be here today without the direction and operational leadership from our long time friend and mentor, Kevin Wilson.
To commemorate Kev, we are excited to announce the Kevin Wilson Memorial Mile. This one mile segment will start one mile out from the finish line. Every participant on race day will be a part of it! We can’t wait to see you all celebrate Kevin with us this March 💜
IN MEMORIAM
It is with broken hearts that we announce the passing of our dear friend, Rock CF Rivers Half Marathon co-founder and race Operations Director, Kevin Wilson. Our history with Kevin is long and rich.
Kevin was Emily’s gym teacher from 1st through 8th grade, and that’s where their bond started. “Emster” (as Kevin started calling Emily in the 90’s) was his right hand girl on the football field, acting as his manager for 6 years to make sure the players had everything they needed, and that he had bubble gum in his pocket.
Emily was introduced to half marathons by Kevin who began running just before her. They trained together for years running around Grosse Ile talking about food, family, food, and more food. It was on one of those runs around the island that the Rock CF Rivers Half Marathon was born.
We are so thankful that Kevin was well enough to be at the Race this year. Having him out there meant the world to us, and him. We are going to miss Kevin more than we can even begin to imagine. Our races will never be the same, but we will carry on his legacy as long as we can.
Our thoughts are with his wife Robin, their kids, and grandkids who all loved him dearly.
THANK YOU TO OUR 2024 SPONSORS
