Pontal, Rio de Janeiro,54.5 km (33.9 mi),ExCeL Exhibition Centre were the venues of Men's middleweight boxingat the Games of the XXX Olympiad . 37 from 31 nations were the competitors in Men's middleweight boxingat the Games of the XXX Olympiad . It was held in 28 July – 9 August 2012,12 August . The no. of events in sport was 14 . 12 (from 4 confederations) were the number of teams who competed in Men's middleweight boxingat the Games of the XXX Olympiad . The official site of Men's middleweight boxingat the Games of the XXX Olympiad is chicagomarathon.com
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