The current course crosses the Ambassador Bridge and the Detroit–Windsor Tunnel between Detroit and Windsor.
[2] The predecessor to this race was the Motor City Marathon which started in 1963 and featured multiple laps on Belle Isle.
[3] The first international marathon was organized by former Detroit Free Press editor and publisher Neal Shine, who was inspired to produce a race in Detroit after witnessing the Falmouth Road Race in Boston during a family vacation.
Registrants were given the option of running the race on their own courses, transferring their entry to 2021 or 2022, or obtaining a 50 percent refund.
[7] The male and female winners of the 2024 race, Andy Bowman and Sydney Devore, were also a married couple.