14 events were there in Men's welterweight boxingat the Games of the XXXI Olympiad . 17 teams participated in Men's welterweight boxingat the Games of the XXXI Olympiad . Olympic BMX Center (BMX),Riocentro – Pavilion 6,Field were the venues of Men's welterweight boxingat the Games of the XXXI Olympiad . The official site of Men's welterweight boxingat the Games of the XXXI Olympiad is www.hardrock100.com . It was held in 7–20 August . 5 September 1971 is when Men's welterweight boxingat the Games of the XXXI Olympiad was established  . 28 from 28 nations,313 from 65 nations were the competitors in Men's welterweight boxingat the Games of the XXXI Olympiad
28 nations took part in Men's welterweight boxingat the Games of the XXXI Olympiad