<Table> <Tr> <Th_colspan="2"> Athletics 800 metres </Th> </Tr> <Tr> <Td_colspan="2"> 800 metres final in Daegu 2011 . </Td> </Tr> <Tr> <Th_colspan="2"> Men's records </Th> </Tr> <Tr> <Th> World </Th> <Td> David Rudisha 1: 40.91 (2012) </Td> </Tr> <Tr> <Th> Olympic </Th> <Td> David Rudisha 1: 40.91 (2012) </Td> </Tr> <Tr> <Th_colspan="2"> Women's records </Th> </Tr> <Tr> <Th> World </Th> <Td> Jarmila Kratochvílová 1: 53.28 (1983) </Td> </Tr> <Tr> <Th> Olympic </Th> <Td> Nadezhda Olizarenko 1: 53.43 (1980) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Athletics 800 metres </Th> </Tr>

Who holds the women's 800m world record