Choose to bike or run this race with distances from 5k to 100k.

The most popular event by far, the Dirty 30 will test even the most seasoned rider. The Dirty 30 follows the Unclean 16 course, through serene and peaceful farmland, with 14 miles of added gravelicous ups, downs and flats that will take your breath away.

The Dirty 30 is part of the Michigan Gravel Race Series (MGRS) and designated as the Short Course.