1–12 August was when it was held . 386 from 138 nations were the competitors in Men's handballat the XXXI Olympiad . 1977 is when Men's handballat the XXXI Olympiad was founded  . The official site of Men's handballat the XXXI Olympiad is chicagomarathon.com . The no. of events in sport was 18 . The venue for Men's handballat the XXXI Olympiad was Olympic BMX Center (BMX)
390 people competed in the Men's handballat the XXXI Olympiad