Korean swimmer Se-hyeon An shattered the Korean record again in the women's 100m butterfly at the NSW State Championships.
An clocked 58.19, slicing her best time by 0.05 seconds and touching the touchpad in the forth following Emma McKeon, Alicia Coutts and Jeanette Ottesen.
Emma McKeon posted the fourth fastest 100m butterfly time of the year, winning in 57.24 while multiple Olympic and Commonwealth Games medalist Alicia Coutts showed she was continuing to return to form, placing third in 57.53.
Jeanette Ottesen of Denmark took silver in 57.40.
The three women put up the second, third and fourth fastest times in the world.




