The no. of events in sport was 14 . The venue for Men's middleweight boxingat the Games of the XXX Olympiad was Pontal, Rio de Janeiro,54.5 km (33.9 mi),ExCeL Exhibition Centre . 28 July – 9 August 2012,12 August was when it was held . 12 (from 4 confederations) teams competed in Men's middleweight boxingat the Games of the XXX Olympiad . The sport has the official site chicagomarathon.com . 37 from 31 nations competed in Men's middleweight boxingat the Games of the XXX Olympiad
More than 2 nations participated in the event