IT'S a competition looking for the fittest on earth — with local trainer Samantha Edwards vying for the top spot.
The Crossfit Parramatta trainer is participating in the global CrossFit Games competition, competing to be one of 60 qualifying women for the Australian Regionals in May.
"It's the ultimate challenge," Mrs Edwards said.
"They're going to test every different ability so you have to be prepared for anything."
Once a week Crossfit headquarters release a workout which participants have five days to perfect before submitting their best score.
More than nine million burpees and five million snatches were performed in the competition's first workout round.
"The workouts are challenging and you never know what they're going to be until they're released each week which motivates you in training because you want to make sure you're on top of everything," Mrs Edwards said.
Crossfit workouts are constantly varied, functional movement at high intensity.
Initially used to boost fitness in police academies, tactical operations teams and champion martial artists, the Crossfit methodology has swept through Australia and the world with tailored workouts for various fitness levels.
"You don't have to be fit to do it," Mrs Edwards said.
"Crossfit is how you get fit."
Crossfit's Australian Regionals will be held in May.