Standard Ground Knee

SubFamily

スタンダードグラウンドニー(Sutandādo Guraundo Nī)

Transliteration

Translation: standard ground knee

Overview

A knee strike delivered from a dominant top position on the ground, using body weight and hip drive to strike a downed opponent's body or head.

Also known as

Ground-and-Pound Knee^[1]Grounded Knee Strike^[2]Kneeling Knee^[3]

Used in

MMA Lethwei Krav Maga

History & Origin

The standard ground knee subfamily represents the most common form of knee strike delivered to a grounded opponent, typically from a top position such as side control or mount. ^[1] Ground knee strikes have been a contested element of combat sports rulemaking since the early UFC era (1993 onward), with organisations adopting varying rules about their legality. ^[1] In the Japanese PRIDE Fighting Championships (1997-2007), ground knees to the head were legal and became a signature tactic of fighters such as Wanderlei Silva and Mauricio Rua. ^[2]

Effectiveness

Standard ground knee strike. ^[1]

Lineage

From MMA. ^[1]

Competition Record

Used in MMA. ^[1]

Images

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Biomechanical Mechanism

Primary Action — Driving the knee upward or diagonally into the target using hip flexion and body weight

Joints Involved — Hip (powerful flexion drive), knee (point of impact, flexed), core (posture and power transfer)

Force Vector — Upward (straight knee to body/head), diagonal (round knee from the side), or clinch-pull driven

Clinch Integration — Most effective when combined with clinch control — pulling the opponent's head down into the rising knee multiplies impact force

Position & Entry

From Muay Thai clinch — Secure the plum (double collar tie), pull the opponent's head down, drive the knee up into the body or head

From clinch (collar-and-bicep) — Control one side, pull the opponent into the rising knee

As counter (opponent shoots) — When the opponent level changes for a takedown, drive the knee up into their face or chest

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Ratings

Danger Rating

Risk of injury to the person this technique is applied to

High6/10

Knees from ground positions; legal in MMA ground-and-pound

Difficulty

Skill level needed to execute this technique reliably

Intermediate

Competition Legality

Whether this technique is allowed under major competition rule sets

Illegal

WBC/Boxing — All knee strikes prohibited {src— WBC Rules of Boxing}

— WKF — Prohibited in sport karate

WKF Competition Rules 2024PDF

— WT — Prohibited

WT Competition Rules 2024PDF

— ITF — Prohibited

ITF Competition RulesPDF

— WAKO — Prohibited in most formats

WAKO Competition RulesPDF

Restricted

— Unified MMA — Knees to standing opponent legal, knees to ...

Unified Rules of MMA, August 2025PDF

K-1/GLORY — One clinch knee allowed before referee break {src— K-1/GLORY Kickboxing Rules}

Legal

Kyokushin — Legal to body {src— IKO Kyokushin Tournament Rules}

— IFMA — Legal — knees are a core Muay Thai weapon, clinch ...

IFMA Muay Thai RulesPDF

Training Notes

✓From a top position (side control, mount, or north-south), drive the knee into the opponent's body

✓Pin the opponent's upper body with chest pressure and arm control before delivering the knee

✓Use short, powerful knee drives from the hip — ground knees do not need a large chamber

✓Target the ribs, solar plexus, or thigh from side control; the body from mount

✓Ground knees force the opponent to react defensively, opening submission and positional opportunities

✓Legal in MMA and many grappling competitions with strikes permitted

✓Maintain heavy top pressure between knees — do not create space just to strike

Common Mistakes

!Sacrificing positional control to throw knees — position is more valuable than a single ground strike

!Rising up too much and creating space for the opponent to escape or reguard

!Kneeing the hip bone or elbow, which hurts the kicker

!Not controlling the opponent's movement — they shrimp away during the knee

!Throwing ground knees to the head of a downed opponent in MMA — illegal under Unified Rules

!Using only knees without transitioning to better positions or submissions

!Bouncing off the target instead of driving through with sustained hip pressure

Related Techniques

Combination — multi-strike sequence incorporating this technique for higher effectiveness

Counter Techniques

Hip Check — push the opponent's hips away to create distance and kill the knee angle Clinch Control — control the opponent's head and posture to prevent knee generation Step Back — create distance to escape the knee's effective range

Setup Chain

1Clinch or Frame — establish control of the opponent's head or body

2Pull Opponent In — use the grip to close distance and compromise their posture

3Drive the Knee — thrust the knee upward into the target

Sources & References

Primary Source

Muay Thai: The Art of Fighting (Yod Ruerngsa, Khun Kao Charuad & James Cartmell, 2002)

1BookMuay Thai: The Art of Fighting (Kraitus, 2002)

Alias sources — [1] Unified Rules of MMA (ABC, 2001) [2] MMA Instruction Manual (Shamrock, 2003) [3] Muay Thai Unleashed (Delp, 2006)

2BookMuay Thai Unleashed (Delp, 2006)

History sources — [1] Ultimate MMA Conditioning (Jamieson, 2009) [2] PRIDE Fighting Championships Official Rules (Dream Stage Entertainment, 2000)

3OtherJapanese Combat Sports Katakana Convention

Standard katakana transliteration of Western martial arts terminology (外来語) — used in Japanese MMA, boxing, and BJJ communities

4CitationMuay Thai: The Art of Fighting (Kraitus, 2002)

Alias sources — [1] Unified Rules of MMA (ABC, 2001) [2] MMA Instruction Manual (Shamrock, 2003) [3] Muay Thai Unleashed (Delp, 2006)

5CitationMuay Thai Unleashed (Delp, 2006)

History sources — [1] Ultimate MMA Conditioning (Jamieson, 2009) [2] PRIDE Fighting Championships Official Rules (Dream Stage Entertainment, 2000)

Community

Athletics

Requires

hip flexion power, clinch control ability, close-range comfort

Favours

long thigh for greater leverage, strong hip flexors

Key muscles

hip flexors, quadriceps, core, grip (for clinch)

Sub-techniques

Standard Ground Knee Strike

Genus

The fundamental ground knee strike delivered from side control or mount, driving the knee into the opponent's midsection or thigh using hip pressure and body weight.

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Frequently Asked Questions

How does the Standard Ground Knee work?

A knee strike delivered from a dominant top position on the ground, using body weight and hip drive to strike a downed opponent's body or head.

Where does the Standard Ground Knee come from?

The standard ground knee subfamily represents the most common form of knee strike delivered to a grounded opponent, typically from a top position such as side control or mount. Ground knee strikes have been a contested element of combat sports rulemaking since the early UFC era (1993 onward), with organisations adopting varying rules about their legality.

Is the Standard Ground Knee legal in competition?

Unified MMA: restricted — Knees to standing opponent legal, knees to head of grounded opponent banned; WBC/Boxing: banned — All knee strikes prohibited; WKF: banned — Prohibited in sport karate; Kyokushin: legal — Legal to body; WT: banned — Prohibited; ITF: banned — Prohibited; WAKO: banned — Prohibited in most formats; K: restricted — 1/GLORY — One clinch knee allowed before referee break; IFMA: legal — Legal — knees are a core Muay Thai weapon, clinch knees highly scored

How dangerous is the Standard Ground Knee?

Danger rating 6/10. High — knees from ground positions; legal in MMA ground-and-pound

How do I set up the Standard Ground Knee?

The standard setup chain: Clinch or Frame → Pull Opponent In → Drive the Knee.

How do I defend against the Standard Ground Knee?

Standard counters include: Hip Check — push the opponent's hips away to create distance and kill the knee angle / Clinch Control — control the opponent's head and posture to prevent knee generation / Step Back — create distance to escape the knee's effective range.

What are the variants of the Standard Ground Knee?

Common variants: Straight knee (driving the knee straight upward into the body or head); Curved knee (round knee) (swinging the knee from the side in a circular path); Flying knee (leaping forward and driving the knee at the apex of the jump); Clinch knee (pulling the opponent into the knee from Muay Thai plum po…).

How effective is the Standard Ground Knee in competition?

Used in MMA.

What are common mistakes when doing the Standard Ground Knee?

Top errors to watch for: Sacrificing positional control to throw knees — position is more valuable than a single ground strike / Rising up too much and creating space for the opponent to escape or reguard / Kneeing the hip bone or elbow, which hurts the kicker / Not controlling the opponent's movement — they shrimp away during the knee.

What are other names for the Standard Ground Knee?

The Standard Ground Knee is also known as Sutandādo Guraundo Nī, Ground-and-Pound Knee, Grounded Knee Strike, Kneeling Knee.

standard ground knee sutand do guraundo n strike knee strike ground knee mma lethwei krav maga ground and pound knee grounded knee strike kneeling knee