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Straight Armbar from Mount

SubmissionJoint lockBelt: white+Risk: moderateIBJJFADCCNo-GiSub-OnlyMMA

The straight armbar from mount is a classic submission targeting the elbow joint by hyperextending the opponent's arm. It is a fundamental attack from the mount, providing high control and strong finishing potential, especially when the opponent attempts to bench press or push you off.

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Start
Mount
End
Submission
Prerequisites: Cross-face control · Posting to maintain base · Isolating an arm · S-mount transition

Steps

  1. 1
    Isolate the Arm
    From a stable mount, use a cross-face and your opposite hand to pin one of your opponent’s wrists to the mat, establishing a strong grip at their wrist with your palm facing down.
  2. 2
    Establish the Figure-Four Grip
    Slide your other arm underneath their triceps and grab your own wrist, creating a figure-four (kimura) grip, keeping your elbows tight and weight chest-heavy to prevent bridging.
  3. 3
    Transition to S-Mount
    Shift your weight forward, sliding your knee up beside their head and your other knee tight to their far-side ribs, forming an S-mount. Your hips should be low and your chest over their trapped arm.
  4. 4
    Thread the Leg Over the Head
    With your far-side hand posting for balance, swing your near-side leg over their face, planting your foot flat and keeping your knee pinched tight to their head to prevent escape.
  5. 5
    Sit Back and Control the Arm
    Sit back in a controlled motion, keeping their arm tight to your chest. Pinch your knees together, heels close to their body, and maintain a strong grip on their wrist.
  6. 6
    Finish the Armbar
    Release the figure-four grip, secure their wrist with both hands (thumb up), and gradually extend your hips while pulling their wrist down, ensuring their thumb points to the ceiling for maximum leverage.
  7. 7
    Adjust for Tightness
    If needed, scoot your hips closer to their shoulder and re-pinch your knees to eliminate slack before extending for the finish.

Key details most people miss

  • Pinch your knees tightly together throughout the finish to prevent their elbow from slipping out.
  • Keep their thumb pointed up (toward the ceiling) to ensure the pressure targets the elbow joint directly.
  • Sit back slowly and keep your hips close to their shoulder—sitting too far back creates space for them to escape.
  • Control their wrist, not just the forearm, to prevent rotational escapes.

Common mistakes

  • Failing to pinch the knees allows the opponent to pull their elbow free and escape.
  • Sitting back too quickly or too far lets the opponent turn and stack, reducing your leverage.
  • Not controlling the wrist (only grabbing the forearm) allows the opponent to rotate their arm and relieve pressure.
  • Leaving too much space between your hips and their shoulder makes the armbar loose and easy to defend.

Counters & responses

They try: Opponent stacks and drives weight onto you before you extend
You do: Angle your body perpendicular to their torso and use your far-side leg to push their head away, breaking their posture.
They try: Opponent clasps their hands to defend the extension
You do: Attack their grip by prying their hands apart with your legs or attacking the near-side arm with a wrist break or transition to a triangle.
They try: Opponent turns their thumb down and rolls toward you
You do: Adjust your grip to reorient their thumb up, or transition to a belly-down armbar by rotating your body and coming up on your elbow.
They try: Opponent bridges explosively as you swing your leg over
You do: Maintain a strong post with your far-side hand and keep your weight chest-heavy until your leg is fully in place.

Drill prescription

5 rounds × 3 minutes; partner gives 50% resistance by framing and clasping hands; goal is 4 clean armbars per round, measured by smooth transition and full lockout without losing position.

How the masters teach it

Videos are still being curated for this technique. AI suggests these instructors:
Roger Gracie — Emphasizes precision in knee pinch and hip proximity for maximum control and finish rate.Marcelo Garcia — Focuses on seamless transition from S-mount and grip breaking details for high-percentage finishes.John Danaher — Teaches systematic arm isolation and grip fighting mechanics to prevent escapes at every stage.Saulo Ribeiro — Highlights weight distribution and timing to counter bridging and stacking defenses.
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