The 2018 Detroit Marathon was held October 20-21, 2018 and was sponsored by both the Detroit Free Press and Chemical Bank.
Source : Kayla Daugherty, “How non-running newspaper guy launched the Detroit Free Press marathon“, Detroit Free Press, September 29, 2017.
Bandon Folsom,”Detroit marathon: Christopher Chipsiya wins men’s full marathon“, Detroit Free Press, October 21, 2018.
Brandon Folsom, “Detroit marathon: Lioudmila Kortchaguina wins women’s full again“, Detroit Free Press, October 21, 2018.
More Detroit Free Press/Chemical Bank Marathon information.
From previous marathons:
Marathon notes: They beat rain, fatigue for race medals“, Detroit Free Press,
This year’s marathon events had a record-breaking 27,833 people register, said Executive Race Director Barbara Bennage. The roster of events was comprised of a 5K and kids fun run on Saturday, which drew more than 2,000 participants, followed by the main events Sunday: the marathon, international half-marathon and U.S.-only half-marathon, as well as marathon relays, officials said. For the full article, see J. C. Reindl, “Detroit marathon sets record, inspires proposals”, Detroit Free Press, October 19, 2015.