15th Annual Rock CF Rivers Half Marathon & 5K
- Date Sun 22nd March 2026
- Time 8:00AM EDT
- Location Grosse Ile, Michigan
- Price $43.40 - $91.10
- Races 4 races
- Distances Half Marathon, 5km
Event summary
Get ready for an exhilarating day of fitness and community spirit at the 15th Annual Rock CF Rivers Half Marathon & 5K on Sunday, March 22, 2026, in Grosse Ile, Wayne! This vibrant event aims to outrun cystic fibrosis and support the Rock CF Foundation's mission. Participants can choose from three exciting race distances: the challenging Half Marathon, the new 15K, or a fun 5K Run/Walk. The Half Marathon and 15K will kick off at 8:00 AM from Grosse Ile Middle School, while the 5K starts shortly after at 8:15 AM from Grosse Ile Airport.
Join thousands of runners and walkers as we come together to raise awareness and funds for those living with cystic fibrosis. Whether you’re a seasoned athlete or a casual participant, this event welcomes everyone to make a difference. Plus, for those unable to attend in person, there’s an option to participate virtually! Lace up your shoes and be part of this uplifting event that celebrates community, health, and hope. Let’s rock CF together!
Join thousands of runners and walkers as we come together to raise awareness and funds for those living with cystic fibrosis. Whether you’re a seasoned athlete or a casual participant, this event welcomes everyone to make a difference. Plus, for those unable to attend in person, there’s an option to participate virtually! Lace up your shoes and be part of this uplifting event that celebrates community, health, and hope. Let’s rock CF together!
Organiser's Description
THE ROCK CF RIVERS HALF MARATHON IS BACK!
JOIN US AS WE OUTRUN CYSTIC FIBROSIS!
SUNDAY, MARCH 22, 2026
Rock CF is hitting the island for the 15th Annual Rivers Half Marathon, 5K Run/Walk & NEW 15K!
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 [https://letsrockcf.org/].
CAPS FOR 2026
Half Marathon Cap = 800
15K Cap = 300
5K Run/Walk Cap = 500
HALF MARATHON
START TIME: 8:00am
START LOCATION: GROSSE ILE MIDDLE SCHOOL - 23270 E RIVER RD, GROSSE ILE TOWNSHIP, MI 48138
FINISH LOCATION GROSSE ILE MIDDLE SCHOOL - 23270 E RIVER RD, GROSSE ILE TOWNSHIP, MI 48138
_________________________________________________________________________________________________________________________
15K
Start Time: 8:00am
Start Location: Grosse Ile Middle School
Finish Location: Grosse Ile Airport Area [https://maps.app.goo.gl/xJRA5U6KmddAHSqeA]
________________________________________________________________________________________________________________________
5K RUN/WALK
START TIME: 8:15 am
START LOCATION: Grosse Ile Airport [https://maps.app.goo.gl/Q8zbyfG1VNWE7ZL9A](South of Naval Hangar)
FINISH LOCATION: Grosse Ile Middle School
_________________________________________________________________________________________________________________________
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!
JOIN US AS WE OUTRUN CYSTIC FIBROSIS!
SUNDAY, MARCH 22, 2026
Rock CF is hitting the island for the 15th Annual Rivers Half Marathon, 5K Run/Walk & NEW 15K!
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 [https://letsrockcf.org/].
CAPS FOR 2026
Half Marathon Cap = 800
15K Cap = 300
5K Run/Walk Cap = 500
HALF MARATHON
START TIME: 8:00am
START LOCATION: GROSSE ILE MIDDLE SCHOOL - 23270 E RIVER RD, GROSSE ILE TOWNSHIP, MI 48138
FINISH LOCATION GROSSE ILE MIDDLE SCHOOL - 23270 E RIVER RD, GROSSE ILE TOWNSHIP, MI 48138
_________________________________________________________________________________________________________________________
15K
Start Time: 8:00am
Start Location: Grosse Ile Middle School
Finish Location: Grosse Ile Airport Area [https://maps.app.goo.gl/xJRA5U6KmddAHSqeA]
________________________________________________________________________________________________________________________
5K RUN/WALK
START TIME: 8:15 am
START LOCATION: Grosse Ile Airport [https://maps.app.goo.gl/Q8zbyfG1VNWE7ZL9A](South of Naval Hangar)
FINISH LOCATION: Grosse Ile Middle School
_________________________________________________________________________________________________________________________
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!
Races
-
Half Marathon
Incl. $6.10 Fee & Long Sleeve Tech Shirt
Sun 22nd March 2026 (8:00AM EDT)
$91.10
The Half Marathon starts & finishes Grosse Ile Middle School. -
15k
Incl. $5.20 Fee & T-Shirt
Sun 22nd March 2026 (8:00AM EDT)
$75.20
The 15K will start with the Half Marathon at Grosse Ile Middle School and finish at the GI Airport. -
5K Run/Walk
Incl. $3.40 Fee & Long Sleeve Tech Shirt
Sun 22nd March 2026 (8:15AM EDT)
$43.40
The 5K starts at the GI Airport and finishes at Grosse Ile Middle School! Participants can gather in hangar before headed to the start line south of the hangar. -
Virtual Run
Incl. $4.00 Fee & Long Sleeve Tech Shirt
$54.00
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23270 E River Rd, Grosse Ile, 48138, MI, United States
15th Annual Rock CF Rivers Half Marathon & 5K
