Join the Top O’ Michigan Outboard Racing Club (Tomorc) this August 11th and 12th, 2018 for the 70th Annual Marathon. Over two days of exciting and tough outboard racing in Northern Michigan. The course navigates through 87 miles of Northern Michigan’s beautiful Inland Waterway. Registration will be Friday, August 10th, from 5 to 8 pm at Marina park along with MEET and GREET BBQ and Live Entertainment with Duffy King -5pm-10pm Click Here for Information – located behind Indian River Chamber of Commerce . Register also on Saturday, 8-9 am at the race pits.