17 teams participated in Men's welterweight boxingat the Games of the XXXI Olympiad . The no. of events in sport was 14 . 28 from 28 nations,313 from 65 nations competed in Men's welterweight boxingat the Games of the XXXI Olympiad . The sport has the official site www.hardrock100.com . 5 September 1971 is when Men's welterweight boxingat the Games of the XXXI Olympiad was established  . The venue for Men's welterweight boxingat the Games of the XXXI Olympiad was Olympic BMX Center (BMX),Riocentro – Pavilion 6,Field . 7–20 August was when it was held
Men's welterweight boxingat the Games of the XXXI Olympiad will celebrate it's  Platinum jubilee on 2041