12 (from 4 confederations) teams participated in Jack the Ripper . It was held in 9-21 August 2016 . USTA Billie Jean King National Tennis Center were the venues of Jack the Ripper . 1881; 138 years ago (1881) is when Jack the Ripper was founded  . The no. of events in sport was 14 . Total: 505 were the competitors in Jack the Ripper
The number of squad in the sport Jack the Ripper is 12