Tasmanian sprinter Jack Hale beats his own 100m national record

The Tasmanian schoolboy who earned the title of Australia's fastest kid last month has broken his own national record.

Last month, Jack Hale smashed the national under 18 record for the 100 metres with a time of 10.44 seconds.

At the Tasmanian independent schools athletics carnival in Hobart on Saturday, the 16-year-old sliced 0.02sec off that time.

He also holds the Tasmanian men's open 100 metres record.

Hale said he was overjoyed that he could back up his initial performance.

"I'm extremely happy now that I can say [it] to the people that were saying it was a one time sort of thing," he said.

He was not able to cement his achievement in his favourite event, the long jump, because of a heel injury.

Earlier this month he launched himself into the record books with a leap of 7.66 metres.

The jump not only broke the national record for the event, it is also believed to be the best result for a 16-year-old in the world.

Looking ahead, Hale has set his sights on winning two gold medals at the IAAF World Youth Championships being held in Cali, Colombia mid-2015.

Beyond that it will be the 2020 Olympic Games.