Dirty 30 Gravel 2027.
Gravel ultra · Saranac, Ionia County, Michigan · USA
27 Mar 2027
The Dirty 30 Gravel Grinder is a round of the Michigan Gravel Race Series, starting in Saranac in Ionia County. Five bike routes from six to a hundred miles share the same gravel core: the short loop forms the base and the longer ones add further sections. Timing is by chip on the number plate and start times are staggered by distance, with a children's race the evening before.
Entries open 25 Sept 2026Entry deadline: 24 Mar 2027bikereg
Series: Michigan Gravel Race Series
Frequently asked questions
When is Dirty 30 Gravel 2027?
Dirty 30 Gravel takes place on 27 Mar 2027 in Saranac, Ionia County, Michigan. Check the organiser's site for the final word.
What routes does Dirty 30 Gravel offer?
The options are Savage Century (100 miles) (161 km / 100 mi, 1037 m / 3402 ft climbing), Filthy 50 (50 miles) (80 km / 50 mi, 593 m / 1946 ft climbing), Dirty 30 (30 miles) (48 km / 30 mi, 388 m / 1273 ft climbing), Unclean 16 (16 miles) (26 km / 16 mi, 184 m / 604 ft climbing) and Slick 6 (6 miles) (10 km / 6 mi, 105 m / 344 ft climbing), as published by the organiser.
How do I enter Dirty 30 Gravel?
Entries are handled by the organiser via bikereg. Registration opens on 25 Sept 2026. The button above takes you to the official page.
Dates, routes and conditions from the linked organiser sources; the official page always has the final word. Not affiliated with the organiser. Every entry is source-checked — nothing here is AI-generated or estimated.