28 from 28 nations,313 from 65 nations competed in Men's welterweight boxingat the Games of the XXXI Olympiad . The venue for Men's welterweight boxingat the Games of the XXXI Olympiad was Olympic BMX Center (BMX),Riocentro – Pavilion 6,Field . Men's welterweight boxingat the Games of the XXXI Olympiad was founded on 5 September 1971 . 7–20 August was when it was held . The official site of Men's welterweight boxingat the Games of the XXXI Olympiad is www.hardrock100.com . 17 teams participated in Men's welterweight boxingat the Games of the XXXI Olympiad . The no. of events in sport was 14
The sport event never happened before 1984