But qualifying in four disparate events - that's unusual.

But it's exactly what Dubbo's Nosa Obaseki is ready to do, when he heads to the Athletics Australia Junior Championships from April 1.

Nosa will represent NSW in all four throwing events - hammer, shot put, discuss and javelin - after winning gold in the former and bronze in the latter.

Nosa said "a fair few boys" represented NSW in all four events at last year's titles, but he's the only one in 2019.

"Just to be known as one of the best all-round throwers in the state - it's a big achievement," he said.

"Hopefully I can get some big throws and hopefully get a medal out there - maybe even a record.

"I've got it in me. I've been working pretty hard."

But these Athletics Australia titles could be one of Nosa's last, as school and football commitments ramp up.

The NSW Country rugby union representative is also a member of the Manly u15s development squad in rugby league.

"He's a special talent," Penman said. "Just a class act."

"Hopefully I can, like I said, hook in, train hard for the next few weeks, hopefully get a big performance out there and leave with a bang," Nosa said.

"I started in under 8s. I didn't really know what I was doing, just a big, chubby kid in under 8s just throwing because I loved it."

The more he trained, the more he "fell in love with it".

"It's just a good feeling … throwing out there, you're out there with your mates and the people you love," he said.

"It's more of a family and a brotherhood than it is competing.

"I'm proud of Lochie Townsend, one of my best mates, and Millie Gooch, Maya and Ella - I'm just proud of them all.

"It's helped enormously with my confidence. Definitely with my performance and attitudes to school I guess … I would recommend it to anyone."