AUSTIN, Texas – Texas swimmer Ian Crocker set a world record in the 50-meter butterfly at the Big 12 conference time trials, pending verification by the sport’s international federation.

Crocker’s time of 23.30 seconds Sunday, a day after the Big 12 championship meet concluded, beat the mark of 23.43 seconds set by Matthew Welsh of Australia in July 2003.

Crocker is a graduate of Cheverus High School in Portland.

The time trials are held for swimmers who have not yet posted times to qualify for the Olympic trials.

Crocker’s time must still be certified as the world record by FINA, the international swimming federation. The organization requires several compliance issues, such as measurements of the pool and drug testing, before making a world record official.

Crocker also holds world records in the 100 butterfly (50.98) and as part of the 400 medley relay team (3:31.54), both set at the 2003 world championships in Barcelona, Spain.