Bradley hills, exactly halfway through the 10 mile race of the CRIM, is a dreaded obstacle.
"The Bradley hills have always been sort of famous or infamous for being the toughest part of the course" says Andrew Younger, race director for the CRIM.
Race organizers hoping a royal incentive drives runners over these hills.
"The fastest Michigan based male and Michigan based female runner are going to be named king and queen of the hill" says Younger.
The fastest power walkers will also be crowned.
As the race changes, longtime volunteers and supporters continue to rally runners to the Festival of Races.
"We're out here all the time promoting the CRIM" says Mark Bauman, owner of Bauman Running and Walking Shop. "I'm part of the CRIM training program, been a group leader since it started, I ran the CRIM since it started, and volunteered since it started".
The race is now in it's 37th year and organizers say it's time for a change...with a focus on making a smoother race.
"What we have done is we have changed the first two miles of the course. Mainly to improve the runner experience because what we don't want to do anymore is have the course go in-between the start and finish area" says Younger.
So lace up your shoes, the CRIM is back, bigger and better than ever, with a royal welcome for four lucky runners.