South African Cameron van der Burgh swam an incredible 50 meter breaststroke, becoming the first man ever under 26 seconds, with the new world record of 25.94. And USA’s Peter Marshall clipped the 100 meter backstroke world record, with a 49.94 where Ryan Lochte’s record was 49.99. Read SwimInfo here and here.

South African Cameron van der Burgh set a new 50 meter short course breaststroke world record today, at the FINA World Cup meet in Moscow. The new world record is 26.08, where Ukranian Oleg Lisogor’s world record from 2006 was 26.17. Read SwimInfo

He was first only 1 hundredth of a second off the world record on Friday, and then pummeled it yesterday, from the 20.81 set by Draganja at the 2008 World Championships in Manchester, to 20.64. Read SwimInfo

USA’s relay won the 400 medley relay with a world record of 3:29.34, beating their own world record of 3:30.68 set at the Olympics in Athens 2004, and securing Phelps his record breaking 8th gold medal. The Australian women also set at 400 medley relay world record, beating their own world mark of 3:55.74 with a new world record of 3:52.69.

Sources: SwimInfo here and here

Zimbabwe’s Kirsty Coventry shattered the 200 backstroke world record with a time of 2:05.24, where USA’s Margaret Hoelzer’s world record from U.S. Trials last month was 2:06.09. And Great Britain’s Rebecca Adlington took down the longest standing world record in style, when she swam the 800 free in a time of 8:14.10, where Janet Evans’ 16 year old world record was 8:16.22.

Sources: SwimInfo here and here

USA’s Rebecca Soni beat Leisel Jones with a new 200 breaststroke world record of 2:20.22, where Jones’ world record was 2:20.54. Ryan Lochte beat Piersol and Vyatchanin in the 200 backstroke with a time of 1:53.94, where Lochte’s and Piersol’s world record was 1:54.32. And Michael Phelps won his 6th gold medal at Beijing 2006 in the 200 IM, bettering his own world record from 1:54.80 to 1:54.23.

Sources: SwimInfo here, here and here