Rock CF is hitting the island for the 14th Annual Rivers Half Marathon & 5K Run/Walk on Sunday, March 9th, 2025 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.
Race Caps for 2025!
Half Marathon - 800 (SOLD OUT!)
5K Run/Walk - 500
Race Weekend!
Saturday, March 8th
Race Expo @ Grosse Ile HIGH School
12:00 PM - 6:00 PM
Sunday, March 9th
Half Marathon - 8:00 AM
Grosse Ile HIGH School
5K Run/Walk - 8:15 AM
Grosse Ile Naval Hangar
Interested in Volunteering?
Looking to get involved with the race in 2025? Sign up for one of our many volunteering opportunities available on race day and the expo!
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