The most dominant BJJ position is the mount.
From the mount, a BJJ fighter can strike to the face.
The strikes include punches, elbows, and palm strikes to the head.
In the UFC, some fighters that were on the bottom of the mount have hugged the person mounting them in hopes of reducing the amount of damage taken.
The person on top would simply slam his stomach to the ground, causing the person that was mounted to take damage to the back of the head.
So far, the UFC referees have not disqualified any of the fighters doing this, even though the back of the person's head hits the ground.
A variation of the mount is the back mount.
This dominant BJJ position is used by many grapplers to finish their opponents.
The person that is back mounted cannot easily see his opponent and has a very limited amount of range of motion from the position.
Having someone on your back with his or her hooks in is a very difficult position to get out of.
A common escape is to try and put your back on the mat.
If successful, this can still result in being mounted.
In addition to being at a physical disadvantage when being mounted, it can also be demoralizing.
Having someone on top of you reigning down punches or putting pressure on you is not a easy situation to deal with.
Some techniques used to escape the mounted position include the UPA and the elbow escape.
The UPA is used after one of the arms of the person mounting is trapped, and the person bridges and rolls to the same side the arm is trapped.
If done successfully, the person that was mounted is now in the guard of the person that was on top.
The elbow escape is another common way of attempting to escape the mount.
In this technique, the person who is mounted turns to his or her side and shrimps out the hips.
The elbow and arms are used to push the knee of the mounted person down, while pushing off with one of his or her feet.
From there, the hips escape the position and the technique is repeated for the other side.
One of the problems with the elbow escape in MMA events is that the person mounted could still take strikes to the face.
In IBJJF tournaments, the referee awards 4 points for achieving this BJJ position.
This is the highest amount of points that you can receive for achieving a position.
Even though the back mount is a difficult BJJ position to escape from, some fighters have used straight arm locks and transitions to the kimura to actually attack the person that had the back mount.
This attack was made famous by Kazushi Sakaraba in his famous match with Renzo Gracie.