Berg, 29, won gold and silver at the Machado Brazilian Jiu Jitsu Australasia titles in Melbourne on Sunday.

He was one of seven Spartan-trained competitors to medal at The Gathering.

Berg, who took up the sport 18 months ago, won his 94-100 kilogram weight division and claimed silver in the open white belt section.

“It is nice to see country clubs can make it against city clubs where there are a diverse range of coloured belts and more experience in competitions because they have more exposure,” he said.

Berg, who credited instructors David Gibb and Trail Dowie for helping him improve and thanked his partner Aime Sandri for her support, said jiu jitsu was an intriguing sport.

“I found it inticing because of the cognitive skills involved and there’s always something to train,” he said.

“It is a bit of an endless skill, there are so many different levels.”

Gibb said Berg deserved his success at the Australasia event.

“He was a standout on the day,” he said.

“He had a lot of matches in the most heavily stacked discipline of the day. It was a big effort. He did really well.”

Steph Umbers also collected two medals for Warrnambool-based Spartan.

She won gold in her weight division and bronze in open.

Joe Rowland struck gold in the seniors division.

Melanie Mason (female open seniors), Chris Russell (male open seniors) and Jackson Fary (male open) took home bronze.

Asha White claimed silver in his junior age and weight section.

“It was the first time we took kids away (to a competition),” Gibb said.

“We had a junior team of eight kids. It was an eye-opener for them stepping into competition.”