Rome, Aug 3 (DPA) An astounding 43 world records were set at the World Swimming Championships that concluded at the Foro Italico here late Sunday.

July 26 (6 world records):

Sarah Sjostrom, Sweden, women's 100m butterfly, 56.44 sec

Paul Biedermann, Germany, men's 400m freestyle, 3:40.07 min

Ariana Kukors, US, women's 200m individual medley, 2:07.03 min

Federica Pellegrini, Italy, women's 400m freestyle, 3:59.15 min

Britta Steffen, Germany, women's 100m freestyle, 52.22 sec (first leg of 4x100 freestyle relay)

Netherlands (Inge Dekker, Ranomi Kromowidjojo, Feemke Heemskerk, Marleen Veldhuis), women's 4x100m freestyle relay, 3:31.72 min

July 27 (5 world records):

Brenton Rickard, Australia, men's 100m breaststroke, 58.58 sec

Sarah Sjostrom, Sweden, women's 100m butterfly, 56.06 sec

Rebecca Soni, US, women's 100m breaststroke, 1:04.84 min

Anastasia Zueva, Russia, women's 100m backstroke, 58.48 sec

Ariana Kukors, US, women's 200m individual medley, 2:06.15 min

July 28 (4 world records):

Paul Biedermann, Germany, men's 200m freestyle, 1:42.00 min

Gemma Spofforth, Britain, women's 100m backstroke, 58.12 sec

Cameron van der Burgh, South Africa, men's 100 breaststroke, 26.74 sec

Federica Pellegrini, Italy, women's 200 freestyle, 1:53.67 min

July 29 (7 world records):

Mary Descenza, US, women's 200m butterfly, 2:04.14 min

Daniel Samulski, Germany, women's 50m backstroke, 27.39 sec

Anastasia Zueva, Russia, women's 50m backstroke, 27.38 sec

Michael Phelps, US, men's 200m butterfly, 1:51.51 min

Federica Pellegrini, Italy, women's 200m freestyle, 1:52.98 min

Cameron van der Burgh, South Africa, men's 50m breaststroke, 26.