Ronda Rousey put on a spectacular performance in her match against Meisha Tate at the UFC 168, defeating Meisha with an arm bar...her 8th one! Ronda came from a Judo background (medaling in the 2008 Beijing Olympics), and her former instructor was 4 time US Olympian Jimmy Pedro, and 2 time US Olympian Travis Stevens was her teammate. Now Jimmy and Travis have released a video on how to defeat the infamous Ronda Rousey Armbar. There's a story there somewhere. In any case check out this technique. https://youtu.be/KGdthuh8ItY