Detroit casinos clean up amid coronavirus, sports betting launch Kurt Nagl, Crain's Detroit Business · March 11, 2020 at 3:10 pm Detroit’s casinos saw a big revenue jump in February as they prepare to take legal sports wagers Wednesday and institute precautions against coronavirus as the first cases are confirmed in Michigan. The city’s three casinos reported an aggregate revenue of $121.7 million last month — a 6.3 percent year-over-year increase, according to the Michigan Gaming Control Board. MGM Grand Detroit held 43 percent of the market share with a 6.4 percent revenue increase to $52.6 million. MotorCity Casino Hotel had 33 percent of the market share with a 4.7 percent revenue jump to $40.5 million. Greektown Casino-Hotel’s 8.3 percent revenue increase to $28.6 million nabbed it 24 percent of the market.