World record remains just outside reach of Ariarne Titmus at Australian swim trials

• Titmus wins 200 metres freestyle at championships in Adelaide
• Olympic champion targeting Federica Pellegrini's benchmark

Ariarne Titmus is happy at swimming fast again but annoyed she cannot yet break the longest-standing women's world record. Titmus won the 200 metres freestyle at the Australian championships on Friday night, swimming faster than when she won Olympic gold in the event last year.

Titmus clocked one minute 53.31 seconds in Adelaide, some 0.19 seconds quicker than when she won the event at the Tokyo Games. The dual Olympic champion was eyeing the world record of 1:52.98 set by Italy's Federica Pellegrini in 2009 during the super-suit era, the longest-standing benchmark in women's swimming.