Presented by Imagine Grinnell


Online Registration is closed

Online Registration is now closed. All events may register in-person tomorrow morning. The cost of the Prairie Burn 100 gravel bike ride will increase to $65. The 5K Fun Run will be $10.

Please arrive at Central Park in Grinnell on Park St. to register. Event times are:
7am 100 mile race
8am 50 mile ride
9am 25 mile ride
10am 5K fun run

Routes will be available through Ride with GPS, or you can take a picture of the route, route guidance signs will also be available. All routes subject to change. To access the routes and learn more about the event:

Online Registration Deadline: Friday, Jun 7, 2024 at 5:00 PM CT

Select Your Category

Category Start Time Distance Prizes Fee
100 Mile- Men $50 7:00 AM 100 miles For top 3 men $50
100 Mile- Women $50 7:00 AM 100 miles For top 3 women $50
100 Mile- Nonbinary $50 7:00 AM 100 miles For top 3 nonbinary $50
50 Mile $50 8:00 AM 50 miles $50
25 Mile $50 9:00 AM 25 miles $50
Prairie Burn Fun Run
Category Start Time Distance Prizes Fee
5K Fun Run $10 10:00 AM 5K km $10

Event Items

Add donations and merchandise to your registration below. You can also donate or purchase items without registering.


Additional Donation for Imagine Grinnell

Imagine Grinnell is a partner program of the Claude W. and Dolly Ahrens Foundation, [+more]


Location & Contact

Location address:
811 Park St, Grinnell, IA  50112
Event Phone Number:
(641) 236-5518
Event Website
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