SINGAPORE - Joseph Schooling continued to make waves at the second stop of the Texas Senior Circuit on Friday (June 10 morning, Singapore time), winning the 100m butterfly in 51.82 seconds, the world's seventh-fastest time this season.
The effort broke fellow University of Texas (Austin) team-mate Jack Conger's meet record of 51.83sec set in 2015.
Schooling's personal best remains the 50.39sec he set in Rio last year on his way to becoming the Olympic champion.
On Thursday, the Singaporean won the 50m fly in 23.51sec, the 12th-fastest time in the world this year.
Schooling, who turns 22 next Friday, has qualified for four events at next month's World Championships in Budapest - the 50m, 100m and 200m fly, as well as the 100m freestyle.
He had clinched the 100m fly bronze at the last edition in 2015 and told The Straits Times last month that he is confident of capturing more than one medal in Hungary this time round.
The Texas Senior Circuit is organised by professional swim coaches and aims to provide top-quality racing for college swimmers in the United States. It is held in the long-course metre format (50m pools), a departure from the short- course yards (25-yard lengths) typical of US collegiate racing.