How to "S-MOUNT" (Plus 4 BJJ Submissions)
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S-Mount Armbar·fightTIPS
While at Evolve MMA in Singapore, I met up with no-gi Brazilian Jiu-Jitsu World Champion: Bismarck Gomes. In this #BJJ t…
S-Mount Armbar
SubFamilyS-mount・アームバー(S-Mount Armbar)
Translation: s-mount armbar
Overview
The S-Mount Armbar is executed from the S-mount position (a high mount with one leg hooked under the opponent's shoulder), providing superior control for the armbar finish. [1] The S-mount eliminates the space needed for common armbar escapes. [1]
S-Mount Arm LockHigh Mount Armbar
History & Origin
The S-Mount Armbar is a technique demonstrated in Saulo Ribeiro's systematic BJJ methodology. [1]
Effectiveness
Effective as part of a submission chain from side control. [1]
Lineage
Gracie Jiu-Jitsu lineage. [1]
Competition Record
Used in UFC and professional MMA competition
Images
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Biomechanical Mechanism
Primary Action — S-Mount Armbar specific mechanics
Joints Involved — Varies by technique
Force Vector — Submission-specific
Position & Entry
From side control — Execute the s-mount armbar
Variants
Not yet documented
Videos
How To Do the Armbar From Mount in Jiu Jitsu | Jiu Jitsu Tutorial
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S-Mount Armbar·Matt Arroyo Jiu Jitsu
Get the Full Mount Attack Blueprint Course! http://mountattackblueprint.com/ Subscribe for more Jiu Jitsu Secrets to H…
Take an S MOUNT and GRAB the ARMBAR!
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S-Mount Armbar·The Grappling Academy
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3 videosWhat Instructors Say
The S-Mount Armbar is a submission technique executed from mount position, named for the S-shaped configuration of the attacker's legs. The Grappling Academy emphasizes the setup from an Americana position: when the defender pushes the attacker's elbow away to escape, the attacker slides their knee up into the armpit space and hugs the far arm before rotating to sit on the defender's belly, finishing by squeezing the knees while pulling the arm across the body. Matt Arroyo Jiu Jitsu provides more detailed timing and control mechanics, stressing that the technique requires first establishing solid mount control by locking feet under the hips and crushing with body weight. Arroyo advocates creating arm elevation through the "what time is it" grip (blade of forearm to neck and jaw) or shoulder pressure, forcing the defender's elbow up so the attacker can position the knee at or above head level. Once in S-mount, Arroyo emphasizes "locking the door" by driving the defender's head into their shoulder with both hands while the second foot secures under the armpit, preventing escape before executing the armbar. FightTIPS (featuring Bismarck Gomez) demonstrates multiple entry points and finish variations from S-mount, including armbar, thumb bar, and triangle options. All three instructors agree on the critical positioning: knee placement level with or above the head, both feet under the armpits, and maintaining tight control through the squeeze. Arroyo and The Grappling Academy both stress methodical execution over speed, ensuring proper positioning before the finish.
Synthesized from 3 instructors
- The Grappling Academy — Take an S MOUNT and GRAB the ARMBAR!: Detailed entry from Americana counter; emphasizes patient, methodical execution; explains real estate concept and elbow deflation as opportunity; demonstrates finishing mechanics with knee squeeze and arm pull.
- Matt Arroyo Jiu Jitsu — How To Do the Armbar From Mount in Jiu Jitsu | Jiu Jitsu Tutorial: Comprehensive timing and control framework; introduces "what time is it" grip for forcing arm elevation; details "locking the door" head control; emphasizes knee placement at head level; provides drilling progressions; warns against rushing despite dominant position.
- fightTIPS — How to "S-MOUNT" (Plus 4 BJJ Submissions): Demonstrates multiple submission options from S-mount position (armbar, thumb bar, triangle, chest compression); shows variations in leg positioning and switches; illustrates technical sequences with No-Gi World Champion Bismarck Gomez.
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Ratings
Risk of injury to the person this technique is applied to
7
Very High7/10
Submission technique requiring tap or risk of injury
Skill level needed to execute this technique reliably
Advanced
Whether this technique is allowed under major competition rule sets
— IBJJF — Legal at all belt levels, gi and no-gi
IBJJF Rules Book v6.0, June 2024PDF— kansetsu-waza
IJF Sport and Organisation Rules 2025, Article 27PDF— ADCC — Legal — all submissions legal in ADCC
ADCC Rules Update, April 2025PDF— Unified MMA — Legal submission technique
Unified Rules of MMA, August 2025PDF— FIAS Sport Sambo — Legal
FIAS International Sambo Competition RulesPDF— FIAS Combat Sambo — Legal
FIAS Combat Sambo RulesPDFTraining Notes
✓Practise the transition smoothly (Ribeiro & Howell, 2008)
Common Mistakes
!Rushing the technique
!Losing position during transition
Related Techniques
Counter Techniques
Setup Chain
1Side control → S-Mount Armbar attempt → Chain to next technique
Sources & References
Primary Source
Jiu-Jitsu University (Ribeiro & Howell, 2008)
1Book[1] Ribeiro, S. and Howell, K. (2008). Jiu-Jitsu University. Victory Belt Publishing. ISBN 978-0-9815044-3-8. Technical Editor: John Danaher.
description, historyOrigin: sourced from Ribeiro, S
2Citation[1] Ribeiro, S. and Howell, K. (2008). Jiu-Jitsu University. Victory Belt Publishing. ISBN 978-0-9815044-3-8. Technical Editor: John Danaher.
description, historyOrigin: sourced from Ribeiro, S
Community
Athletics
Good top pressure and arm control
Notes
The S-mount armbar appears in Drill to Win (Andre Galvao, 2010): the attacker transitions to S-mount (one leg over the opponent's face, one under) and falls back for the armbar. S-mount provides the tightest arm isolation before the armbar extension. (Galvao, Drill to Win; BJJ instructionals)
Frequently Asked Questions
How do I transition to the S-mount armbar when my opponent pushes my arm away?
As your opponent deflates or pushes your arm away, slide your knee up to establish control, then rotate to see your opponent clearly before proceeding with the armbar setup. The Grappling Academy emphasizes that timing this knee slide with your opponent's defensive push is key to the transition.
What should I do with my feet and body position once I'm in S-mount?
Hug the opponent's far arm with both hands, turn your right foot to face toward their head, sit on your right side cheek against their belly, and creep around to establish control. The Grappling Academy stresses keeping your foot positioning flexible and adjusting based on your mobility.
When is the right time to go for the armbar from mount?
According to Matt Arroyo Jiu Jitsu, timing is critical—if you attempt it at the wrong moment, it won't work. The ideal time is after you've locked down your opponent with your feet under their butt and made them exhaust their escape attempts, so they give up and their energy drops.
What's the proper finishing technique to prevent my opponent from escaping?
Matt Arroyo Jiu Jitsu recommends leaning to lock the arm before they can interlock their hands, then replacing your position, sitting tight, and pulling them in close; clamp your knees together and pull down for the tap, or raise your hips through the elbow if your opponent is flexible.
How does the S-Mount Armbar work?
The S-Mount Armbar is executed from the S-mount position (a high mount with one leg hooked under the opponent's shoulder), providing superior control for the armbar finish. The S-mount eliminates the space needed for common armbar escapes.
Where does the S-Mount Armbar come from?
The S-Mount Armbar is a technique demonstrated in Saulo Ribeiro's systematic BJJ methodology.
Is the S-Mount Armbar legal in competition?
IBJJF: legal — Legal at all belt levels, gi and no-gi; IJF: legal — Legal — elbow joint lock (kansetsu-waza), one of the permitted submission cat…; ADCC: legal — Legal — all submissions legal in ADCC; Unified MMA: legal — Legal submission technique; FIAS Sport Sambo: legal — Legal; FIAS Combat Sambo: legal — Legal
How dangerous is the S-Mount Armbar?
Danger rating 7/10. Submission technique requiring tap or risk of injury
How do I set up the S-Mount Armbar?
The standard setup chain: Side control → S-Mount Armbar attempt → Chain to next technique.
How do I defend against the S-Mount Armbar?
Standard counters include: Defend the initial grip / Create space / Bridge and escape.
How effective is the S-Mount Armbar in competition?
Used in UFC and professional MMA competition
What are common mistakes when doing the S-Mount Armbar?
Top errors to watch for: Rushing the technique / Losing position during transition.
What are other names for the S-Mount Armbar?
The S-Mount Armbar is also known as S-Mount Armbar, S-Mount Arm Lock, High Mount Armbar.