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16th Annual Rock CF Rivers Half Marathon
Sunday, March 21, 2027Grosse Ile, MIVirtual Run – Half Marathon
The 16th Annual Rock CF Rivers Half Marathon, 15K, and 5K is coming back to the island of Grosse Ile, Michigan on Sunday, March 21st, 2027 for all to come and help us outrun cystic fibrosis! Starting from the Grosse Ile High School, enjoy the flat-and-fast course en route to chasing a personal best, experiencing your first half marathon, or taking in the scenic views of the Detroit River with friends & family at one of Michigan's premier spring races.
Races
Who's running this
View start listYou're early — the field is wide open
Nobody on the start list yet. Grab a bib, or share the race with someone who'd run it with you.
Location
Directions7800 Grays Dr, Grosse Ile, MI, 48138, US
