外踵落とし（基本型）(Soto Kakato Otoshi (Kihon-gata))
TraditionalTranslation: standard outside axe kick
The Standard Outside Axe Kick is executed by swinging the kicking leg in a wide lateral arc up and over the opponent's guard from the outside, then driving the heel downward in a chopping motion onto the collarbone, shoulder, or head. [1] The kick uses hip abductor and flexor muscles to lift the leg in the sweeping arc, followed by hip adduction and extension to accelerate the downward strike. [1],[2] This technique is commonly seen in taekwondo and full-contact karate competition as an offensive or counter-attacking weapon. [2],[3]
The standard outside axe kick became a mainstream competition technique through taekwondo and was further popularised by Andy Hug in K-1 kickboxing, where his axe kick knockouts became some of the most replayed moments in combat sports history. [1] The technique continues to be a regular feature of taekwondo Olympic competition. [2],[3]
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Risk of injury to the person this technique is applied to
Downward heel strike; collarbone/head impact risk
Skill level needed to execute this technique reliably
Whether this technique is allowed under major competition rule sets
Karate-Do Kyohan: The Master Text (Gichin Funakoshi, 1935)
Alias sources — [1] Kukkiwon Taekwondo Textbook (Kukkiwon, 2006) [2] Taekwondo: The State of the Art (Park, 1989) [3] Karate-Do Kyohan (Funakoshi, 1935)
Effectiveness sources — [1] Taekwondo: The State of the Art (Jun, 1989)
Official karate technique names (和語/漢語)
Established Japanese martial arts naming convention — native Japanese term (和語/漢語)
Alias sources — [1] Kukkiwon Taekwondo Textbook (Kukkiwon, 2006) [2] Taekwondo: The State of the Art (Park, 1989) [3] Karate-Do Kyohan (Funakoshi, 1935)
Effectiveness sources — [1] Taekwondo: The State of the Art (Jun, 1989)
exceptional hip flexibility, hamstring length, leg raising speed
extremely flexible hips for raising the leg above head height
hip flexors, hamstrings (eccentric), quadriceps, core
The most important thing is to drive your knee up high—not just to shin height—before extending the kick. According to Heads of the Valleys Tang Soo Do, if you don't get your knee high enough, it kills all the power. The kick itself should feel like an afterthought after that knee drive, not a separate movement driven from the floor.
A common mistake is trying to kick with just your leg instead of engaging your whole body. Heads of the Valleys Tang Soo Do emphasizes that you need to turn your front foot out, push your hip through, and bring your shoulder along for the ride—this generates the power and proper form.
Practice on a pad or paddle held at arm's distance away from you, starting low and working up. According to Heads of the Valleys Tang Soo Do, when you can make a sharp noise with the kick over your head while maintaining good form, you know you've got the technique down to a good standard.
The Standard Outside Axe Kick is executed by swinging the kicking leg in a wide lateral arc up and over the opponent's guard from the outside, then driving the heel downward in a chopping motion onto the collarbone, shoulder, or head. The kick uses hip abductor and flexor muscles to lift the leg in the sweeping arc, followed by hip adduction and extension to accelerate the downward strike.
The standard outside axe kick became a mainstream competition technique through taekwondo and was further popularised by Andy Hug in K-1 kickboxing, where his axe kick knockouts became some of the most replayed moments in combat sports history. The technique continues to be a regular feature of taekwondo Olympic competition.
Unified MMA: legal — Legal striking technique; WBC/Boxing: banned — All kicks prohibited in boxing; WKF: legal — Legal, chudan (body) kick scores 2 points, jodan (head) kick scores 3 points; Kyokushin: legal — Legal at full power to body and head; WT: legal — Legal, body kick 2 points, head kick 3 points, spinning body 4 points, spinni…; WAKO: legal — Legal in Full Contact and Low Kick formats; K: legal — 1/GLORY — Legal; IFMA: legal — Legal — kicks are a core Muay Thai technique
Danger rating 6/10. High — downward heel strike; collarbone/head impact risk
The standard setup chain: Stance and Range → Chamber the Leg → Execute the Kick → Recover.
Standard counters include: Check (Shin Block) — raise the shin to intercept the kick before it lands / Catch and Sweep — catch the kicking leg and sweep the standing leg / Step Inside — close distance inside the kick's effective range to smother it.
Common variants: Outside axe kick (raising the leg outside and bringing the heel straight down); Inside axe kick (raising the leg inside in a crescent arc before chopping …); Spinning axe kick (adding a spin before the downward chop).
Andy Hug was famous for his axe kick in K-1 kickboxing competition, using it to win the 1996 K-1 World Grand Prix. The axe kick remains a high-scoring technique in Olympic taekwondo competition.
Top errors to watch for: Pausing at the top of the arc, which kills momentum and gives the opponent time to move / Swinging the leg wide but not getting enough height, so the chop lands at shoulder level instead of from above / Using the instep or bottom of the foot instead of the hard heel for the downward strike / Over-rotating the standing foot so you lose sight of the opponent.
The Standard Outside Axe Kick is also known as Soto Kakato Otoshi (Kihon-gata), Bakkat Naeryeo Chagi, Standard Outside Heel Drop, Soto Kakato Otoshi.
