A fighter can be winning every second of a fight and lose it in an instant — caught, wrapped up, and forced to tap. That is the magic and terror of the submission, the skill that separates MMA from a straight fistfight. If the tapping and the tangled limbs have ever confused you, here is how it all works, in plain English.
Two families: chokes and joint locks
Every submission falls into one of two buckets. Chokes force a fighter to quit (or go unconscious) by cutting off blood to the brain or air to the lungs. Joint locks hyper-extend or twist a joint — an elbow, shoulder, knee or ankle — until continuing means a serious injury. In both cases the trapped fighter "taps out" (a literal tap on the mat or the opponent) to concede before real damage is done. It is the ultimate proof of grappling skill, which is why the best grapplers are so dangerous even against superior strikers.
The chokes you will see most
- Rear-naked choke. The king of submissions. Taken from behind ("the back"), an arm wraps under the chin around the neck and squeezes — no grip on clothing needed, hence "naked." Get someone's back and this is often the finish.
- Guillotine. A front headlock choke, often caught when an opponent shoots in for a sloppy takedown. The neck gets trapped under the arm and lifted — a lightning-fast counter that can end a fight in seconds.
- Triangle choke. A choke made with the legs, forming a triangle around the opponent's neck and one arm. It looks like a hug from the bottom and is a favorite of slick jiu-jitsu players fighting off their back.
- D'arce & guillotine variants. A family of arm-and-neck chokes from the front and side — the details differ, but the idea is the same: trap the head, cut the flow, force the tap.
The joint locks you will see most
- Armbar. The most iconic joint lock. The attacker isolates one arm, traps it between their legs, and drives the hips up to hyper-extend the elbow. Tap, or it snaps.
- Kimura & americana. Shoulder locks that bend the arm and rotate it behind the back — brutal, controlling, and hard to escape once the grip is locked. The kimura also doubles as a control position and a sweep.
- Leg locks (heel hook, kneebar). The modern frontier. Instead of the arms, these attack the knee and ankle. The heel hook in particular is feared because the damage arrives fast and the pain warning comes late — by the time it hurts, something has already torn.
- Straight ankle lock. The entry-level leg attack — grab the foot, extend the ankle. Lower-risk than a heel hook, but a great scrambler can catch one out of almost any leg entanglement.
Position before submission
Here is the principle beginners miss: submissions do not come from nowhere. They are the payoff for winning position first — passing the guard, taking the back, isolating a limb. A great submission hunter is really a great positional grappler; the tap is just the last step in a chain that started three exchanges earlier.
Grapplers even talk about a "positional hierarchy" — a ladder of control that each rung makes the finish more likely:
- Back control — the most dominant spot in the sport, and the launchpad for the rear-naked choke.
- Mount — sitting on the chest; opens up the armbar and heavy ground-and-pound.
- Side control — a pinning position that leads to arm-triangles and kimuras.
- Guard — the bottom fighter's legs are in play; dangerous for triangles and armbars, but the weakest control position.
How fighters defend and escape
Surviving on the mat is a skill of its own — a great defensive grappler can be "caught" a dozen times and never tap. The core survival toolkit:
- Hand-fighting — never let an opponent build the grip; break the choke hands before they connect.
- Protecting the neck and posture — keeping the chin tucked and the arms in denies the choke its angle.
- Hip escapes and framing — creating space to slide out before the position is locked.
- Staying calm — panic burns energy and invites mistakes; the best escapes come from fighters who relax inside danger.
The technical submission
One thing that confuses new fans: sometimes a fighter gets choked unconscious without ever tapping. That is scored as a technical submission — the same result as a tap (a submission win), except the fighter refused to quit and the referee stepped in when they went out. It is a stark reminder of how real the danger is, and it is one of the ways a fight can end.
Why the submission threat changes everything
Even a fighter who never gets submitted is shaped by the threat of it. A striker who fears the ground fights more cautiously, hesitates to follow a hurt opponent down, and gives up takedown attempts they would otherwise punish. That is the hidden value of a grappling game — it does not just win fights on the mat, it quietly rewrites how the opponent is willing to fight everywhere else. It is the same "control the terms" logic behind a wrestling base.
Grappling and submission threat are woven into every matchup in our fight simulator — pit an elite submission artist against a striker with shaky ground defense and watch how often the fight ends with a tap. Or build a jiu-jitsu specialist from scratch in Build a Fighter and see how far the dark arts carry them.