Swimming at the 2012 Summer Olympics – Women's 100 metre freestyle

The women's 100 metre freestyle event at the 2012 Summer Olympics took place on 1–2 August 2012 at the London Aquatics Centre in London, United Kingdom. Dutch swimmer Ranomi Kromowidjojo swam to a new Olympic record to become the country's third gold medalist in the event, along with Rie Mastenbroek in 1936 and Inge de Bruijn in 2000. In fourth place at the halfway turn, she pulled ahead of a tightly-packed field to touch the wall first and improve her own record in 53.00. Belarus' Aliaksandra Herasimenia was in the lead on the first length under a world-record pace, but faded down the stretch to win the silver medal in 53.38. China's Tang Yi swam a fast final lap for the bronze medal in 53.44.

Swimming at the 2012 Summer Olympics – Women's 100 metre freestyle

The women's 100 metre freestyle event at the 2012 Summer Olympics took place on 1–2 August 2012 at the London Aquatics Centre in London, United Kingdom. Dutch swimmer Ranomi Kromowidjojo swam to a new Olympic record to become the country's third gold medalist in the event, along with Rie Mastenbroek in 1936 and Inge de Bruijn in 2000. In fourth place at the halfway turn, she pulled ahead of a tightly-packed field to touch the wall first and improve her own record in 53.00. Belarus' Aliaksandra Herasimenia was in the lead on the first length under a world-record pace, but faded down the stretch to win the silver medal in 53.38. China's Tang Yi swam a fast final lap for the bronze medal in 53.44.