We're not sure whether Katrin Davidsdottir can challenge Rhonda Rousey, but we're pretty sure, she's helluva fit. Her workouts are intense, and insane. She's just been named the 'Fittest Woman on Eath' after winning the 2015 Reebok Crossfit Games in Los Angeles.
She hails from Iceland.
The "Mountain" from Game of Thrones is also from there.
She's only 22-years-old, and she's been doing CrossFit for a couple of years.
Before crossfit, she did 10 years of gymnastics.
Her typical workout week includes multiple workouts in a day, at least three times a week.
Crazy strong!!