I have discovered that this move is called an Olympic Roll. I am a certified wrestling nerd and know more about amateur wrestling than 99% of people but I had to refer to the 1% to uncover the name of this obscure technique. I can't believe anyone practices something that must have such an incredibly low chance of success, hell, I'm shocked that it even works in theory, much less against an elite Russian freestyler.
Jared Frayer, the US Olympic rep at 66 kilos, is wrestling somewhat unheralded Russian, Kuzanaliev in the bronze medal dual against the Russian Federation. The Russian is beating Jared pretty convincingly in the first period but as time is running out, he falls into a Frayer's front headlock. Frayer needs a big move to win this period and golly does he ever pull one off.
The move requires Frayer to keep a snug front headlock while rolling across the back of his opponent. There is no margin of error here and Frayer's spine must be perfectly perpendicular with the Russian's. If the angle of the back-bones is greater or less then 90 degrees the move will not work and Frayer will slip off while in great jeopardy. Frayer must arch Kuzanaliev's back all the way to the mat and for this to work his left shoulder needs to land perfectly in the lumbar to act as a fulcrum. The torque generated must be incredible. The fact that he rolls and exposes his opponent's back with this move is surprising, that he re-positions himself perfectly for the pin is astonishing.