RunRace USA › Michigan › 15th Annual Rock CF Rivers Half Marathon & 5K

15th Annual Rock CF Rivers Half Marathon & 5K

Grosse Ile, Michigan · Sunday, March 21, 2027 · Half Marathon, 15K, 5K

Official race page & registration ↗

15th Annual Rock CF Rivers Half Marathon & 5K takes place on Sunday, March 21, 2027 in Grosse Ile, Michigan. The race offers 3 distances: Half Marathon, 15K, 5K. For anyone travelling in, Detroit is about 14 miles away.

It is one of 15 races on the Michigan calendar that March. At $40, entry sits above the $20 median for a Michigan half marathon.

Date
Sunday, March 21, 2027
Location
Grosse Ile, Michigan
Distances
Half Marathon, 15K, 5K
Entry fee
from $40
Registration
listed as closed

Listing from the 2027 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.

Making a race weekend of it?

Stay near the start line in Grosse Ile: check in Mar 20, out Mar 22.

Hotels on Booking.com ↗ Hotels on Expedia ↗

Common questions

When is 15th Annual Rock CF Rivers Half Marathon & 5K?

15th Annual Rock CF Rivers Half Marathon & 5K is scheduled for Sunday, March 21, 2027.

Where is 15th Annual Rock CF Rivers Half Marathon & 5K held?

15th Annual Rock CF Rivers Half Marathon & 5K is held in Grosse Ile, Michigan. It is about 14 miles from Detroit.

What distances does 15th Annual Rock CF Rivers Half Marathon & 5K offer?

The listed distances are Half Marathon, 15K, 5K.

How much does 15th Annual Rock CF Rivers Half Marathon & 5K cost?

Entry is listed from $40. Check the official race page for the current price, which usually rises closer to race day.

How do I register for 15th Annual Rock CF Rivers Half Marathon & 5K?

Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.

More races nearby

See every race on the Michigan calendar, Michigan Half Marathons, Michigan 5Ks, or use the Race Finder for maps and filters.