Leisel Marie Jones, OAM is an Australian former competition swimmer and Olympic gold medallist. A participant in the 2000 Summer Olympics – at just 15 years old – and 2004 Summer Olympics, she was part of gold-medal-winning Australian team in the women's 4×100-metre medley relay at the Athens Games in 2004 and a gold medallist for 100-metre breaststroke in the 2008 Summer Olympics in Beijing.

Penelope ("Penny") Heyns OIS is a South African former swimmer, who is best known for being the only woman in the history of the Olympic Games to have won both the 100 m and 200 m breaststroke events – at the 1996 Atlanta Olympic Games – making her South Africa's first post-apartheid Olympic gold medallist following South Africa's re-admission to the Games in 1992. Along with Australian champion Leisel Jones, Heyns is regarded as one of the greatest breaststroke swimmers.