Arm Wrestling- Richard Lupkes

https://www.youtube.com/watch?v=kTa5CIlbW0s

https://www.youtube.com/watch?v=0SWOXMI79HY

I saw a video earlier this month, this thing requires some technique to overcome the opponent. If I remember the technique emphasized involving your lats and shoulders more by putting your upper body weight on the arm you are using (forming some body angle) and kinda pulling the opponent towards you