Standard Prone Rear Mount

Genus

うつ伏せバックマウント(Utsubuse Bakku Maunto)

Hybrid

Translation: prone back mount

Overview

The prone rear mount (belly-down back mount) is a back control variant where the opponent is flattened face-down (prone) on the mat while the attacker maintains back mount with hooks in from on top. [1] Gracie University describes it as 'the single most dangerous and demoralizing position in all of jiu-jitsu.' The opponent has zero offensive options: they cannot strike, cannot see the attacker, and have extremely limited escape paths. [2] Distinguished from standard back control (opponent on side or seated) by the fact that gravity works entirely in the attacker's favor.

Also known as
Prone Rear MountBelly-Down Back MountFlattened Back MountBack Mount

History & Origin

Fundamental grappling position existing across all martial arts. Distinguished in BJJ from side back control as a specific dominant variant. [1] Gracie University formalizes it in the Combatives curriculum. [2]

Effectiveness

Described by Gracie University as 'the single most dangerous and demoralizing position in all of jiu-jitsu.' The opponent has zero offensive options and extremely limited escapes. [1]

Lineage

Fundamental grappling position. Formalized in Gracie University Combatives curriculum.

Competition Record

Used at every level of BJJ and MMA competition. Considered the single most dominant position available.

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Biomechanical Mechanism

Primary ActionAttacker's full body weight drives down onto the prone opponent's back; hooks (feet inside thighs) prevent turning or shrimping
Gravity AdvantageUnlike side back control, gravity works entirely in the attacker's favor
Defensive LimitationThe opponent's frames are neutralized by the prone position — they cannot create the space needed for standard back escape sequences

Position & Entry

From turtle breakdownBreak down the turtled opponent flat, insert hooks
From standard back controlFlatten the opponent from side back control by driving weight forward
From mountOpponent turns to turtle, follow and flatten

Variants

Standard prone rear mount with hooksclassic belly-down control
Body triangle prone mountbody triangle instead of hooks for heavier control
Prone mount with seatbeltseatbelt grip adds upper body control for choke entries

Videos

Top 5 Wrestling Moves *PINS*

0
Standard Prone Rear Mount·Cayden Henschel

This is my top 5 wrestling moves that are wrestling pins. These 5 wrestling moves are my favorite because they are fun t

1 video

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Ratings

Danger Rating

Risk of injury to the person this technique is applied to

2
Low2/10

The position itself is not injurious, but submissions from here (RNC, collar chokes) are high-danger; in MMA, ground-and-pound from prone back mount is devastating

Difficulty

Skill level needed to execute this technique reliably

Intermediate
Competition Legality

Whether this technique is allowed under major competition rule sets

IBJJF — Legal, mount scores 4 points — highest-scoring po...
IBJJF Rules Book v6.0, June 2024PDF
ADCC — Legal, mount scores 2 points
ADCC Rules Update, April 2025PDF
Unified MMA — Legal dominant position
Unified Rules of MMA, August 2025PDF
UWW — Legal, back exposure scores points, pin ends match ...
UWW International Wrestling Rules, January 2026PDF
FIAS Sport Sambo — Legal, pin scores points
FIAS International Sambo Competition RulesPDF

Training Notes

Gracie University's Lesson 34 covers the belly-down back mount as part of the Gracie Combatives curriculum, emphasizing it as the most dominant position in jiu-jitsu. The key distinction from standard back control: the opponent is completely flat (prone) rather than on their side, meaning gravity assists the attacker and the opponent cannot execute standard hip-escape-based back escapes. In MMA, this position is particularly devastating because the attacker can deliver undefended ground-and-pound while the opponent has no striking options. The position is the natural result of breaking down an opponent from turtle — flatten them and insert hooks.

Common Mistakes

!Not inserting hooks — without hooks, the opponent can roll and escape
!Riding too high — weight should be distributed through the hips, not the shoulders
!Not securing a seatbelt or collar grip — need upper body control for choke entries
!Allowing the opponent to get to their knees — must keep them flat

Related Techniques

Counter Techniques

Setup Chain

1Control opponent's back (from turtle or transition) → Drive weight forward to flatten opponent prone → Insert both hooks inside opponent's thighs → Establish seatbelt or collar grip → Attack: RNC, collar chokes, or transition to mounted position

Sources & References

Primary Source

Gracie University — Lesson 34: Belly Down Back Mount

1BookGracie University — Lesson 34: Belly Down Back Mount (Gracie Combatives)

[1] Gracie University — Lesson 34 Gracie Combatives curriculum

2OtherJapanese Martial Arts Community Terminology

Gracie University — Lesson 34: Belly Down Back Mount (Gracie Combatives) || Evolve MMA — BJJ 101: The Back Mount (evolve-mma.com)

3OtherJapanese Martial Arts Hybrid Terminology

Mixed Japanese-Western terminology — combines traditional Japanese terms with katakana loanwords

4CitationGracie University — Lesson 34: Belly Down Back Mount (Gracie Combatives)

[1] Gracie University — Lesson 34 Gracie Combatives curriculum

5CitationEvolve MMA — BJJ 101: The Back Mount (evolve-mma.com)

[2] Evolve MMA — back mount technical analysis

Community

Athletics

Requires

ability to maintain weight distribution, hook control

Key muscles

hip flexors, core, back extensors

Frequently Asked Questions

How do I set up the collar tie and overhook for a prone rear mount pin?

Get a collar tie on the neck, then secure a tight overhook with your fist positioned on their chest while squeezing your bicep. Cayden Henschel emphasizes keeping this grip controlled before transitioning into the pin.

What's the footwork for dropping into a prone rear mount pin?

Jump into the middle with your feet, then drop and turn while maintaining your collar tie and overhook grip. This positions you to press your elbow into their sternum for a flat pin.

How do I flatten my opponent once I have the rear mount position?

Hold your grip firmly, put your elbow right on their sternum, and press up on their head. This flattens them out for an automatic pin.

How does the Standard Prone Rear Mount work?

The prone rear mount (belly-down back mount) is a back control variant where the opponent is flattened face-down (prone) on the mat while the attacker maintains back mount with hooks in from on top. Gracie University describes it as 'the single most dangerous and demoralizing position in all of jiu-jitsu.

Where does the Standard Prone Rear Mount come from?

Fundamental grappling position existing across all martial arts. Distinguished in BJJ from side back control as a specific dominant variant.

Is the Standard Prone Rear Mount legal in competition?

IBJJF: legal — Legal, mount scores 4 points — highest-scoring position; IJF: legal — Legal, osaekomi (pin) — 10-19 seconds scores waza-ari, 20 seconds scores ippon; ADCC: legal — Legal, mount scores 2 points; Unified MMA: legal — Legal dominant position; UWW: legal — Legal, back exposure scores points, pin ends match by fall; FIAS Sport Sambo: legal — Legal, pin scores points

How dangerous is the Standard Prone Rear Mount?

Danger rating 2/10. The position itself is not injurious, but submissions from here (RNC, collar chokes) are high-danger; in MMA, ground-and-pound from prone back mount is devastating

How do I set up the Standard Prone Rear Mount?

The standard setup chain: Control opponent's back (from turtle or transition) → Drive weight forward to flatten opponent prone → Insert both hooks inside opponent's thighs → Establish seatbelt or collar grip → Attack: RNC, collar chokes, or transition to mounted position.

How do I defend against the Standard Prone Rear Mount?

Standard counters include: Prevent being flattened — fight to stay on your side / Bridge and roll — attempt to rotate to guard / Trap a hook — isolate one hook to begin escaping / Slide hips to the side — create enough angle to begin a hip escape.

What are the variants of the Standard Prone Rear Mount?

Common variants: Standard prone rear mount with hooks (classic belly-down control); Body triangle prone mount (body triangle instead of hooks for heavier control); Prone mount with seatbelt (seatbelt grip adds upper body control for choke entries).

How effective is the Standard Prone Rear Mount in competition?

Used at every level of BJJ and MMA competition. Considered the single most dominant position available.

What are common mistakes when doing the Standard Prone Rear Mount?

Top errors to watch for: Not inserting hooks — without hooks, the opponent can roll and escape / Riding too high — weight should be distributed through the hips, not the shoulders / Not securing a seatbelt or collar grip — need upper body control for choke entries / Allowing the opponent to get to their knees — must keep them flat.

What are other names for the Standard Prone Rear Mount?

The Standard Prone Rear Mount is also known as Utsubuse Bakku Maunto, Prone Rear Mount, Belly-Down Back Mount, Flattened Back Mount, Back Mount.