Kosuke Hagino set a new Asian record at the Japan Open swim meet on Thursday.
The 18-year-old won the 400 metres individual medley in 4:07.61, beating his own mark of 4:08-94 that he set winning the bornze medal at the 2012 Games.
Federica Pellegrini claimed the national title at the Italian Championships in the 200 metres backstroke.
Pellegrini, 24, won the race in 2:08.06 just 0.03 seconds outside the Italian record set by Alessia Filippi at the Mediterranean Games in Pescara, June 2009.