Notable sisters have also passed through the IBC including Jennifer and Lauren Gelfand (USA, 1986 and 1990 respectively) and Adrienne and Ashley Canterna (USA, 1998 and 2002).
The 2010 competition brought us the first father-son participants with Andrei Pisarev[REF] of the Ukraine who is the son of Vadim Pisarev that won a Gold medal for the USSR in 1986 [REF].