Combination: One-two, Slip, Left Hook
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One-Two Combination·Russian School of Boxing
Alexey Frolov trains Saadat Dalgatova, the vice-world Champion.
One-Two Combination
SubFamilyワンツー(Wan Tsū)
TransliterationTranslation: one-two combination
Overview
History & Origin
The one-two combination (jab followed immediately by the cross) is the most fundamental two-punch combination in boxing and one of the first sequences taught to beginners. [1] Dempsey identified the jab-cross as the foundational combination in Championship Fighting, explaining that the jab obscures the opponent's vision and disrupts their guard, creating the opening for the more powerful cross. [1] The one-two has been the single most commonly thrown combination in professional boxing since records have been kept. [2] Haislet documented the one-two as requiring the jab to be thrown at full extension before the cross follows in a seamless transfer of weight from front foot to rear foot and back. [3]
Effectiveness
Lineage
The one-two is the first combination taught in boxing. [1]
Competition Record
The jab-cross is the most commonly thrown combination in boxing 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 orthodox stance — Extend the lead hand straight toward the target, snap back to guard, keep rear hand protecting the chin
From southpaw stance — Same mechanics from the opposite side — lead left hand becomes a right jab
As range finder — Use the jab at long range to measure distance before committing to power shots
Videos
How to Come Back with the ONE TWO Punch combination!
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One-Two Combination·World Class Boxing Channel
How to Come Back with the ONE TWO Punch combination! Today Tom Yankello of the @World Class Boxing Channel shows you a…
2 videos
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Ratings
Risk of injury to the person this technique is applied to
5
High5/10
Jab/cross; fundamental striking tool, cumulative brain trauma risk
Skill level needed to execute this technique reliably
Beginner
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
✓The one-two is the most fundamental combination in boxing: jab followed immediately by the cross along the same line
✓The jab closes distance and occupies the opponent's guard; the cross follows behind it with full power
✓Fire the cross as the jab retracts — there should be no pause between the two punches
✓Rotate fully on the cross: the rear hip, shoulder, and foot all turn over as the jab hand returns to guard
✓Practise the one-two thousands of times until the transition is seamless — Dempsey called it the foundation of combination punching
✓Vary the target: jab head-cross head, jab head-cross body, jab body-cross head to exploit guard shifts
✓The one-two works in every combat sport because it naturally flows from the fighting stance
Common Mistakes
!Pausing between the jab and the cross — the combination must flow as one continuous motion with two beats
!Throwing both punches at the same power, when the jab should be a quick setup and the cross the payload
!Not returning the jab hand to the chin before the cross fires, leaving the lead side open to a hook
!Winding up the cross while the jab is still out, creating a readable telegraph
!Standing straight up during the combination — you should be sitting down on the cross with bent knees
!Throwing the one-two in a straight line without any head movement or angle change, making you predictable
!Always going to the same target with both punches — level changes force the opponent to defend multiple zones
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
Karate-Do Kyohan: The Master Text (Gichin Funakoshi, 1935)
1BookBoxing (Dempsey, 1950)
Alias sources — [1] Championship Fighting (Dempsey, 1950) [2] Boxing (Fleischer, 1958) [3] Karate-Do Kyohan (Funakoshi, 1935)
2BookThe Boxing Register (Roberts & Skutt, 2006)
History sources — [1] Championship Fighting (Dempsey, 1950) [2] Boxing's Greatest Fighters (Sugar, 2006) [3] Boxing (Haislet, 1940)
3OtherJapanese Combat Sports Katakana Convention
Standard katakana transliteration of Western martial arts terminology (外来語) — used in Japanese MMA, boxing, and BJJ communities
4CitationBoxing (Dempsey, 1950)
Alias sources — [1] Championship Fighting (Dempsey, 1950) [2] Boxing (Fleischer, 1958) [3] Karate-Do Kyohan (Funakoshi, 1935)
5CitationThe Boxing Register (Roberts & Skutt, 2006)
History sources — [1] Championship Fighting (Dempsey, 1950) [2] Boxing's Greatest Fighters (Sugar, 2006) [3] Boxing (Haislet, 1940)
Community
Athletics
Requires
hand speed, shoulder endurance, quick retraction
Favours
longer reach for keeping opponents at distance
Key muscles
anterior deltoid, triceps, serratus anterior, core
Sub-techniques
Frequently Asked Questions
How should I use my hips and shoulders when throwing the one-two?
Focus on rotating and counter-rotating your hips and shoulders together rather than using huge arm movements. The Russian School of Boxing emphasizes that you are faster when you accelerate with your shoulders while maintaining proper boxing stance.
Should I wait for my opponent to react before following up after the one-two?
No—accelerate yourself immediately after the one-two regardless of whether your opponent throws a counter punch. The key is continuous footwork and momentum; don't hesitate or lean forward waiting for a response.
Can I practice the one-two combination alone without a partner?
Yes, absolutely. The World Class Boxing Channel recommends practicing the footwork and moves by yourself while watching instructional videos; this helps ingrain the technique into your muscle memory.
How does the One-Two Combination work?
A fundamental two-punch combination consisting of a lead-hand jab immediately followed by a rear-hand cross, the most basic and widely taught combination in striking arts.
Where does the One-Two Combination come from?
The one-two combination (jab followed immediately by the cross) is the most fundamental two-punch combination in boxing and one of the first sequences taught to beginners. Dempsey identified the jab-cross as the foundational combination in Championship Fighting, explaining that the jab obscures the opponent's vision and disrupts their guard, creating the opening for the more powerful cross.
Is the One-Two Combination 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 One-Two Combination?
Danger rating 5/10. High — jab/cross; fundamental striking tool, cumulative brain trauma risk
How do I set up the One-Two Combination?
The standard setup chain: Assume Fighting Stance → Generate Power → Execute Strike → Recover to Guard.
How do I defend against the One-Two Combination?
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 One-Two Combination?
Common variants: Standard jab (quick, straight lead-hand punch from orthodox stance); Power jab (stepping into the jab with more body weight for increased…); Double jab (two rapid jabs to set up a follow-up power shot); Body jab (targeting the midsection instead of the head).
How effective is the One-Two Combination in competition?
The jab-cross is the most commonly thrown combination in boxing and MMA.
What are common mistakes when doing the One-Two Combination?
Top errors to watch for: Pausing between the jab and the cross — the combination must flow as one continuous motion with two beats / Throwing both punches at the same power, when the jab should be a quick setup and the cross the payload / Not returning the jab hand to the chin before the cross fires, leaving the lead side open to a hook / Winding up the cross while the jab is still out, creating a readable telegraph.
What are other names for the One-Two Combination?
The One-Two Combination is also known as Wan Tsū, Jab-Cross, One-Two, Ichi-Ni.