Italy's Federica Pellegrini broke a new world record of 1:54.82 to claim a gold medal in the event. Sara Isakovič, who finished behind Pellegrini by 0.15 of a second, cleared a 1:55 barrier to set a new Slovenian record of 1:54.97, and ultimately become the nation's first ever medalist in swimming. China's Pang Jiaying edged out U.S. swimmer Katie Hoff on the final lap to pick up a bronze in 1:55.05. Hoff finished in fourth place in an American record of 1:55.78.[2][3][4]
Defending champion Camelia Potec finished outside the medals in fifth place, posting a Romanian record of 1:56.87. Great Britain's Caitlin McClatchey earned a sixth spot in 1:57.65, and was followed by a seventh-place tie between Australia's Bronte Barratt and France's Ophélie-Cyrielle Étienne in a matching time of 1:57.83. For the first time in Olympic history, all eight swimmers went faster than a winning time of 1:58.03, previously set by Potec in Athens four years earlier.[2]
Earlier in the prelims, Pang broke one of the oldest Olympic records in the book, when she clocked at 1:57.37 to lead the fourth heat, slashing 0.28 seconds off the old mark set by East Germany's Heike Friedrich from Seoul in 1988. Two heats later, Pellegrini posted a top-seeded time of 1:55.45 to erase Laure Manaudou's world record, set in 2007.[5]
Records
Prior to this competition, the existing world and Olympic records were as follows.