It was held in 6–20 August 2016 . 40 from 30 nations competed in  Detroit Grand Prix . The sport has the official site chicagomarathon.com .  Société Athlétique de la Villa Primrose in Bordeaux (1909) were the venues of  Detroit Grand Prix . 17 teams competed in  Detroit Grand Prix . 12 events were there in  Detroit Grand Prix
Less than 10 events were held in  Detroit Grand Prix