The guys are wrestlers who wanted to see how wrestling stacked up against BJJ. They have no BJJ training themselves. The girl was posting on the Gracie Academy facebook page and talked about it. She is 16 years old, a blue belt and has been training for 9 years (I assume off and on since she is a blue belt after 9 years). She has some nice transitions and subs. It's always impressive when a female can beat males.