The girls' 100 metre backstroke event in swimming at the 2014 Summer Youth Olympics took place on 17–18 August at the Nanjing Olympic Sports Centre in Nanjing, China. Results Heats The heats were held at 10:42. Semifinals The semifinals were held at 18:30. Swim-off The swim-off was held at 00:09. Final The final was held at 19:06. References Swimming at the 2014 Summer Youth Olympics