Rome, July 27 (DPA) The final session in the swimming competition at the world championships in Rome Monday saw more records being broken, following the setting of three new world earlier in the session.

Australian Brenton Rickard won the gold medal in the men's 100m breaststroke, while Swedish teenage sensation Sarah Sjostrom broke her own record in the 100m butterfly final.

American Rebecca Soni managed to break the women's 100m breaststroke record in the semi-finals.

Rickard swam 58.58 seconds to win the men's 100m breaststroke, beating the previous best mark held by Japan's Kosuke Kitajima.

The silver medal went to France's Hugues Duboscq in a time of 58.64, while Cameron Van der Burgh of South Africa took the bronze, .37 seconds behind Rickard.

American Eric Shanteau, who swam a championship record in the semi-finals, finished fourth. He said that he was disappointed with his finish.

'Having set a championship record in the semi-finals, I was hoping to get a medal in the finals, but the other guys did well, so I can't complain.'

Ukrainian Igor Borysik, whose time of 58.67 from earlier this year has not yet been ratified, placed fifth.

In the women's 100m butterfly, Sjostrom swam her second world record in as many days as she won gold in a time of 56.