6–20 August 2016 was when it was held . 17 teams competed in  Detroit Grand Prix . 40 from 30 nations were the competitors in  Detroit Grand Prix . The sport has the official site chicagomarathon.com . The venue for  Detroit Grand Prix was  Société Athlétique de la Villa Primrose in Bordeaux (1909) . 12 events were there in  Detroit Grand Prix
In the sport  Detroit Grand Prix ,32 nations participated