64 from 25 nations competed in Men's welterweight boxingat the Games of the XXXI Olympiad . 1871; 148 years ago (1871) is when Men's welterweight boxingat the Games of the XXXI Olympiad was established  . It was held in 7–20 August . 8 events were there in Men's welterweight boxingat the Games of the XXXI Olympiad . The sport has the official site chicagomarathon.com . The venue for Men's welterweight boxingat the Games of the XXXI Olympiad was Georgia Dome (artistic)
The sport Men's welterweight boxingat the Games of the XXXI Olympiad has more than6 contestants  from more than 9 nations