Katrin Davidsdottir
At just 23 years old Katrin Davidsdottir is two times world CrossFit Champion, taking home the top spot in 2015 and 2016, she’s the real deal. Born in Iceland she now trains out of CrossFit New England.
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How To Do Double Unders
Let me start this by saying that I am by no means a pro at double unders! I have however improved massively since starting…