It was held in 28 July,12 August . 28 from 28 nations were the competitors in Men's middleweight boxingat the Games of the XXX Olympiad . The venue for Men's middleweight boxingat the Games of the XXX Olympiad was ExCeL Exhibition Centre
The sport Men's middleweight boxingat the Games of the XXX Olympiad has 28 contestants  from less than 39 nations