Comprehensive Guide to Throwing Knee Strikes in Muay Thai
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Standard Ground Knee·fightTIPS
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Translation: standard ground knee
Range & classification
Category
Strike & defenceLocksClose rangeFighting multiple people
Distance
CloseMiddleLong
Limb angle
Zero180–135°135–90°90–45°45–0°
Body target
Upper bodyMiddle bodyLower body
Overview
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]
Country of origin· shown in random order
- BrazilMMA
- USAMMA
- MyanmarLethwei
- IsraelKrav Maga
Effectiveness
Standard ground knee strike. [1]
Lineage
From MMA. [1]
Competition Record
Used in MMA. [1]
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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
Videos
1 video
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Ratings
Risk of injury to the person this technique is applied to
6
High6/10
Knees from ground positions; legal in MMA ground-and-pound
Skill level needed to execute this technique reliably
Intermediate
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 RulesPDFRestricted
— Unified MMA — Knees to standing opponent legal, knees to ...
Unified Rules of MMA, August 2025PDFK-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 RulesPDFTraining 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
Counter Techniques
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
Find by what a technique does — not its name
Every move, in any martial art, shares a few universal traits. Mix and match below to pinpoint the right tool — or compare equivalents across styles.
Category
Distance
Limb angle
Body target
Frequently Asked Questions
What part of my leg should I strike with when throwing a knee?
You should strike with the kneecap, the top of the tibia, or the bottom of the femur. According to fightTIPS, bringing your heel all the way up to your butt ensures proper contact with these striking surfaces.
How do I generate more power in my knee strikes?
FightTIPS recommends leaning your upper body back while driving your hips forward and turning the knee over, which gives you extra pop in your hips and extra distance.
Can short-range knee strikes still be effective?
Yes—fightTIPS highlights that short knee strikes can be devastating if they target vital areas like the liver, as demonstrated by Giorgio Petrojan dropping Andy Sauer with a simple, very short left knee.
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.