Auckland swimmer Lauren Boyle has produced another world class performance on the second day of the Australian championships in Sydney.
Boyle blitzed the field in the 1500 metres freestyle, in the fastest time in the world this year.
She swum the 1500 in 16 minutes and 6.72 seconds.
On the opening day Boyle produced the second-fastest 400 metres freestyle time in the world this year.
The Commonwealth Games champion was only a quarter of a second outside her New Zealand record set at the London Olympics, with her heat time clocking four minutes 3.88 seconds.
The quick time is a real fillip looking ahead to the national championships, which are the trial for the world championships.
Boyle went through the opening 100 metres under the one minute mark and then produced laps of a minute one second for each 100 in a thoroughly impressive display.