The lifters dominated some grades, racking up personal bests and setting both New Zealand and Oceania records.
There were 14 lifters from the southern region at the championships and they came away with four first placings, four silver medals and four third placings.
Dunedin lifter Lesley Procter set seven Oceania records, one New Zealand record and four Commonwealth records.
Procter was competing in the masters three grade for 60-plus, at 72kg.
She said yesterday to do so well was a thrill and was unexpected.
``I was surprised because I had not been training that great. I've only really been doing it for about seven months,'' she said.
Procter, who has just turned 60, lifted 86kg in the back squat, 57.5kg in the bench press and 132.5kg in the deadlift, which were all Oceania records.
She got into Crossfit in 2013 as the years were catching up with her.
``I'd been sporty growing up and played lots of sport. But you know how it is when you get a bit older. You put on weight, the sedentary lifestyle catches up with you.''
She went to the gym and now trains eight times a week.
Her main goal is to be in the top 200 athletes in her age group for Crossfit and then get into the top 20 where she can then qualify for the Crossfit Games to take place in Wisconsin in the United States next year.
She is coached by Jeff Leckie.
Young Dunedin lifter Orla Harris, at her first international competition, set an Oceania record for a 78kg bench press.
Invercargill's masters lifter Andy Mahon, lifting in the open class, set a masters 1 world record for his 302.5kg squat and another world record for his 770kg total. His 302.5kg deadlift was an Oceania record.
In the single bench press competition, masters 2 category, Rennie Soffe was second overall.
