Registration opens for the 2026 Dirty Donut on Wednesday, November 19, 2025 at 7:00 am. Once the field limit is met we will open a waiting list and attempt to allow as many as possible in the race from that list. Click the BikeReg link above to register.

The Beginner 4 mile family fun ride is FREE. You still must register for it to participate.

Race fee schedule for the 16, 26, 42, 62, and 100 mile distances based on how many have registered –
1-199 – $75 Individual $100 Tandem Team
200-399 – $80 Individual $105 Tandem Team
400-599 – $85 Individual $110 Tandem Team
600-799 – $90 Individual $115 Tandem Team
800+ – $95 Individual $120 Tandem Team

Your race registration for 16, 26 42, 62, an 100 mile distances includes – Entry into the race, Custom race numbers, donuts and refreshments at our race donut stations, a beautiful finisher’s medal for every participant, a chance at some of the most awesome winners awards in cycling, food and refreshments after the race (Food for 100 mile racers must be purchased separately), and an event t-shirt is guaranteed for all those who register before midnight May 5th. (The shirt size that you order at registration is the only size we can give you at packet pickup. Once every race has started we can make shirt exchanges provided there are left over sizes still available.)

The shirt size that you order at registration is the only size we can give you at packet pickup. Once every race has started we can make shirt exchanges provided there are left over sizes still available.

A portion of each registration will be donated to Make-A-Wish of Michigan and the Martin Michigan Public Schools.