“You’re thinking about it all wrong. You don’t have to be perfect to win this tournament You don’t need to never make a mistake. You just need to go out there and in each match make one less mistake than the other person.”How to do armbars without a mistake
When you do an armbar, lock the opponent's arm against your body. You should not be using your arms trying to pull the person's arm in any direction. The most efficient way to do an armbar is to have the opponent's arm tight against your body, between your legs. If the opponent is on his back, as in the example below, rotate towards his head as Karo is doing here
LOCK THE ARM AGAINST YOUR BODY!
Karo has perfect form as he has no space between his body and Rob's arm.
When you are in the position above arch your hips, either the person will give up or the elbow will dislocate.
I'd just like to point out here that although these two gentlemen are at grappling practice, the technique they are demonstrating is EXACTLY the judo technique, juji gatame, with no modification whatsoever. Karo is, in fact, a judo black belt.
P.S. Rob, who is also a judo player, wanted me to point out that he in fact LET Karo get him in the armbar just so I could get good pictures and there is no possibility that does not involve shackles, snipers and a troop of little boy scouts in which Karo could actually get him into a position where he would be required to tap out.
P.P.S. Thanks to both of you for taking a few minutes away from practice to pose for pictures.