Backfist Secrets
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Standing Backfist·Chip Quimby & Authentic Karate Training Center
This video reviews training methodology and theory of the Backfist Strike (uraken-uchi). Taken from his video, Kanshiw…
Standing Backfist
SubFamily立ち裏拳(Tachi Uraken)
TraditionalTranslation: standing backfist
Overview
History & Origin
The standing backfist is the non-spinning variant of uraken uchi, delivered from a stationary stance with a snapping extension of the arm. [1] Funakoshi documented this as a fundamental Okinawan technique, typically targeting the temple or bridge of the nose from close range. [2] Nakayama described the standing backfist as one of the fastest techniques in karate, with its power derived from wrist snap rather than body rotation. [3] The technique has remained a standard component of karate and taekwondo training. [1]
Effectiveness
The standing backfist is a non-spinning backfist from a stationary position. [1]
Lineage
From karate and kung fu. [1]
Competition Record
Used in karate and MMA. [1]
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Biomechanical Mechanism
Primary Action — Ballistic extension of the arm — kinetic chain transfers force from the ground through the hips to the fist
Joints Involved — Shoulder (flexion/rotation), elbow (rapid extension), wrist (stabilised on impact), hips (rotation)
Force Vector — Linear (jab, cross) or circular (hook, overhand) depending on the punch type
Kinetic Chain — Ground reaction force → hip rotation → torso rotation → shoulder extension → fist impact — each link amplifies velocity
Position & Entry
From fighting stance — Establish guard, generate force through hip rotation and weight transfer, extend the striking arm to the target
As combination (after setup) — Follow a jab or feint with the punch to exploit the opening created
As counter — Time the punch to land as the opponent commits to their own attack
Videos
1 video
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Ratings
Risk of injury to the person this technique is applied to
5
High5/10
Spinning/standing backfist; metacarpal fracture risk to striker
Skill level needed to execute this technique reliably
Intermediate
Whether this technique is allowed under major competition rule sets
Restricted
Kyokushin — Body punches legal at full power, head punches banned {src— IKO Kyokushin Tournament Rules}
— 1 point
WT Competition Rules 2024PDFLegal
— Unified MMA — Legal striking technique
Unified Rules of MMA, August 2025PDFWBC/Boxing — Legal — punches are the core technique of boxing {src— WBC Rules of Boxing}
— ITF — Legal — hand techniques to head and body both permi...
ITF Competition RulesPDF— WAKO — Legal in Full Contact and Low Kick formats
WAKO Competition RulesPDFK-1/GLORY — Legal — full power punches to head and body {src— K-1/GLORY Kickboxing Rules}
— IFMA — Legal
IFMA Muay Thai RulesPDFTraining Notes
✓Throw the backfist from a stationary stance using a snapping motion of the forearm, similar to a whip
✓The elbow stays relatively fixed and the forearm snaps outward, striking with the back of the knuckles
✓The standing backfist is faster than the spinning variant but carries less power — it is a speed technique
✓Use it as a quick scoring strike or distraction to set up heavier punches
✓In point-fighting karate (WKF), the standing backfist (uraken uchi) is one of the fastest scoring techniques
✓Snap the fist back immediately after contact — the retraction is what makes it a backfist rather than a push
✓It works well as a lead technique from a bladed stance, snapping the front hand outward to the temple
Common Mistakes
!Pushing through the target instead of snapping — the backfist must retract quickly for it to be classified correctly in competition
!Winding up the arm before throwing, which negates the speed advantage
!Hitting with the palm side of the fist or the fingers instead of the knuckle ridge
!Throwing the standing backfist at full power as if it were a hook — the mechanics are different and forcing power risks wrist injury
!Not keeping the elbow as the pivot point — the whole arm swinging reduces speed and accuracy
!Dropping guard with the opposite hand during the snap
!Using the standing backfist repeatedly to the same target — once the opponent reads the angle, they will slip and counter easily
Related Techniques
Counter Techniques
Setup Chain
1Assume Fighting Stance — begin from a balanced position with guard up
2Generate Power — use hip rotation and weight transfer for maximum force
3Execute Strike — deliver the technique to the target with correct form
4Recover to Guard — return immediately to defensive position
Sources & References
Primary Source
Muay Thai: The Art of Fighting (Yod Ruerngsa, Khun Kao Charuad & James Cartmell, 2002)
1BookBoxing (Dempsey, 1950)
Alias sources — [1] Karate-Do Kyohan (Funakoshi, 1935) [2] Dynamic Karate (Nakayama, 1966) [3] Kukkiwon Taekwondo Textbook (Kukkiwon, 2006)
2BookThe Boxing Register (Roberts & Skutt, 2006)
History sources — [1] The Art of Striking (Blauer, 2004) [2] Karate-Do Kyohan (Funakoshi, 1935) [3] Best Karate Vol. 3 (Nakayama, 1978)
Official karate technique names (和語/漢語)
4OtherJapanese Martial Arts Standard Terminology (武道用語)
Established Japanese martial arts naming convention — native Japanese term (和語/漢語)
5CitationBoxing (Dempsey, 1950)
Alias sources — [1] Karate-Do Kyohan (Funakoshi, 1935) [2] Dynamic Karate (Nakayama, 1966) [3] Kukkiwon Taekwondo Textbook (Kukkiwon, 2006)
6CitationThe Boxing Register (Roberts & Skutt, 2006)
History sources — [1] The Art of Striking (Blauer, 2004) [2] Karate-Do Kyohan (Funakoshi, 1935) [3] Best Karate Vol. 3 (Nakayama, 1978)
Community
Athletics
Requires
hand speed, hip rotation, wrist alignment on impact
Favours
proportional reach, strong wrists, fast-twitch shoulder muscles
Key muscles
deltoids, pectorals, triceps, core rotators, forearms
Sub-techniques
Frequently Asked Questions
What's the key to executing a fast, effective standing backfist?
According to Chip Quimby, the key to the backfist is to stay relaxed and think of the movement as one continuous action like an ellipse, rather than waiting for your arm to stop before pulling back.
What part of the hand should I use to strike with a backfist?
Chip Quimby explains that you can use the full face of the fist, or if whipping the backfist, you can use just the two middle knuckles like a mace or flail for concentrated striking power.
Where should I aim with a standing backfist?
The primary target is the area where the mustache would be, just below the nose, which are crucial and dangerous points to strike; the chin and jaw also offer valid targets, with anything from the eyes down and around being technically valid.
How does the Standing Backfist work?
A backfist delivered from a stationary position without spinning, using a snapping motion of the wrist and elbow to strike with the back of the knuckles.
Where does the Standing Backfist come from?
The standing backfist is the non-spinning variant of uraken uchi, delivered from a stationary stance with a snapping extension of the arm. Funakoshi documented this as a fundamental Okinawan technique, typically targeting the temple or bridge of the nose from close range.
Is the Standing Backfist legal in competition?
Unified MMA: legal — Legal striking technique; WBC/Boxing: legal — Legal — punches are the core technique of boxing; WKF: legal — Legal, jodan/chudan punch scores 1 point (yuko) — controlled contact required; Kyokushin: restricted — Body punches legal at full power, head punches banned; WT: restricted — Punches to trunk only (1 point), punches to head banned; ITF: legal — Legal — hand techniques to head and body both permitted; WAKO: legal — Legal in Full Contact and Low Kick formats; K: legal — 1/GLORY — Legal — full power punches to head and body; IFMA: legal — Legal
How dangerous is the Standing Backfist?
Danger rating 5/10. High — spinning/standing backfist; metacarpal fracture risk to striker
How do I set up the Standing Backfist?
The standard setup chain: Assume Fighting Stance → Generate Power → Execute Strike → Recover to Guard.
How do I defend against the Standing Backfist?
Standard counters include: Block — absorb the strike with a protective guard position / Evasion — move the target out of the strike's path / Counter-Attack — time an offensive response during the recovery phase of the strike.
What are the variants of the Standing Backfist?
Common variants: Horizontal elbow (swinging the elbow horizontally at head level); Uppercut elbow (rising elbow from below targeting the chin); Downward elbow (chopping the elbow straight down (Muay Thai sok tat)); Spinning elbow (full rotation before driving the elbow into the target).
How effective is the Standing Backfist in competition?
Used in karate and MMA.
What are common mistakes when doing the Standing Backfist?
Top errors to watch for: Pushing through the target instead of snapping — the backfist must retract quickly for it to be classified correctly … / Winding up the arm before throwing, which negates the speed advantage / Hitting with the palm side of the fist or the fingers instead of the knuckle ridge / Throwing the standing backfist at full power as if it were a hook — the mechanics are different and forcing power ris….
What are other names for the Standing Backfist?
The Standing Backfist is also known as Tachi Uraken, Uraken Uchi, Standing Back Fist, Deungjumeok Chigi.