Originally Posted by Kikipro

4. Elbow locks

This occurs when your opponent extends wrist, and your pecs are usually extended too, which applies a lot of pressure on your wrists and your arm, and therefore makes you unable to extend your elbow fully, making you MUCH more easier to DQ.
One way to get your elbow to normal is to lower the shoulder while extending the elbow.
No matter the situation, this usually frees your elbow from being locked.
Ofc, there will be situations where you won't be able to rotate chest/lower shoulder, therefore your opponent will auto-win with that elbow lock.
Overtime you'll learn to prevent those from happening.
Also contracting the elbow might help when lowering.