Four world records were broken in the National Aquatics Center on Wednesday. by South Africa's Paul Kevin in the men's 100 meter breaststroke SB9, America's Lamback Lantz in the men's 100 meter backstroke S7, Australia's Porter Katrina in women's 100 meter backstroke S7, and Russia's Lisenkov Konstantin in the men's 100 meter backstroke S8.
