Questions tagged [judo]

Japanese modern martial art, combat sport, and Olympic sport of throwing, pinning, choking, and locking; developed by *Kano Jigoro* in 1882.

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Is the North-South choke legal in Judo?

From a kuzure-kami-shiho-gatame position one can apply the North-South choke. This can be finished with the arm in the hold (as in an arm-triangle position), but I have most often seen it ...
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How are arm-triangle chokes classified in Judo?

There are various styles of choke involving an arm-triangle: Uke supine Kata-gatame choke North-South choke (with arm in) Von Flue choke From sprawl D'Arce choke Anaconda choke Peruvian ...
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Judo techniques with their origin in BJJ?

Are there any techniques developed independently in BJJ since it branched off from judo which have hence been incorporated into Judo to success? E.g. a novel type of armlock/strangle/pin, a non-...
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Did Jigoro Kano invent the concept of Kuzushi in judo?

It is oft claimed that one of the distinguishing points between Kano's Judo and the schools of Jujutsu that came before was that he introduced the concept of kuzushi ("balance breaking") ...
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What did Judo change/innovate when it branched from Jujutsu?

What did Judo change/innovate from Jujutsu? I understand that Kano, the inventor of Judo, borrowed from Jujutsu, and his style was originally called Kano Jujutsu. And I understand that he removed ...
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Is the "baseball choke" legal in Judo?

Since at least 1999 judo has banned any chokes applied using the skirt of the jacket. This rule was re-emphasised in 2014 after a variant of suso-jime was used to success multiple times by Yarden ...
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Are there any overlaps between the Judo kodokan techniques and Sumo's kimarite?

Looking over the wikipedia list, it seems like some of the kakete techniques might be near or even pure analogs of judo throws. Kekaeshi for instance, would be a good candidate. But others involve ...
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What is the difference between Yama-arashi and Harai-goshi?

I have seen the throw yama-arashi done in multiple ways: 10 dan Mifune performs it without sweeping uke's leg. In the Kodokan training video tori performs yama arashi with an obvious leg sweep (...
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What is kubi-nage?

I have occasionally seen a throw called kubi-nage ("neck throw") referenced in Judo. This isn't a Kodokan-recognised name, but the throws I have seen described as it appear to be very similar to koshi-...
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What is the good path to become a Judo teacher?

I am currently 15, live in a small town in Switzerland and have a green belt. There is a small, local Judo community that mostly trains young children from white to orange belt. There are currently ...
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How has BJJ innovated since diverging from Judo?

Brazilian Jiu-Jitsu has its roots in early 20th century Judo, but has developed independently as a distinct martial art focused on groundwork in the century since then. It maintains a number of ...
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What style(s) of Jujitsu did Jigoro Kano study?

I have read that in Japan there was a general system called jujitsu. However there were hundreds of branches of jujitsu. Most samurai were trained in different branches of jujitsu. Basically any ...
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What is a "shoulder lock" in Judo terminology?

In a judo context, "elbow-lock" has a broader definition than in other martial arts, referring to both armbars and bent-arm rotational locks (since both manipulate the elbow joint for effect, ...
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Are Omoplatas legal in judo?

Are omoplatas legal in judo? Though they cause pain to the shoulder joint, they "lock" the elbow joint (in a bent position) to achieve this (as in ude-garami and te-gatame).
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Why is a "scarf hold" so-named if you don't wrap around the opponent's neck (like a scarf)?

Judo's kesa-gatame is often translated as "scarf hold", but the technique is defined by wrapping your arms and upper body around uke's neck and arm, more like a seatbelt, as opposed to wrapping around ...
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Body constriction techniques

Judo shime-waza comprises three types of technique: blood-chokes air-chokes body constrictions The most famous of the third type is the (competition-banned) do-jime, but it is also possible to ...
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Are Hammerlocks legal in judo?

The Kodokan Kansetsu-Waza video demonstrates a number of variations of te-gatame where uke's arm is pulled up their back, applying a hyper-rotational lock to the shoulder (sometimes called a ...
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Are Biceps Slicers legal in judo?

There are a number of compression locks in grappling, which function with tori placing a limb (acting as a fulcrum) in the crook of one of uke's joints, and applying pressure to flex the joint over ...
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Osoto-gari grabbing uke's neck or hair

In the Kodokan Goshin-jutsu kata, a variation of osoto-gari grabbing uke's neck (as opposed to their collar) is taught as a defence from a punch/strike by uke (naname-uchi):1 One can also perform ...
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Is shaking hands after a judo competition bad etiquette in Japan?

Judo contains a number of rituals inherited from Japanese culture, one example being the codification of bowing to your opponent before and after competing.1 However bowing doesn't carry the same ...
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Were wristlocks ever part of Judo randori?

The Kodokan goshin-jutsu kata as well as several 20th century judo texts1 demonstrate various wristlocks as a self defence technique, similar to the teaching of atemi. However since at least 1900, ...
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Why is ude-garami legal if it is effectively a shoulder lock?

Since 1925, judo competitions have nominally banned all joint-locks applied "anywhere other than to the elbow joint". Since its inception in 1951, the IJF has also adopted this rule. In ...
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Is the crucifix a valid osaekomi-waza?

The IJF in 2013 (and the Kodokan in 2017) recognised two new pins as valid osaekomi-waza in competition: uki-gatame, and ura-gatame. I have seen the term ura-gatame refer to two distinct positions: 1....
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Are arm-triangle chokes legal in Judo?

When holding an opponent in kata-gatame: by applying pressure to one side of their neck with their trapped shoulder, and the other side with your enclosed arms, you can apply an arm triangle choke, ...
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Origin of kata-guruma?

In an interview with Torahei Ochiai in the 1920's, Jigoro Kano states that he adopted kata-guruma from wrestling's fireman's carry.1 However, the Kodokan Judo Throwing Techniques book posits a ...
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Why were leg grabs removed from competitive judo?

As of 20101 the IJF made it illegal to grab the legs or trousers during direct attacks in tachi-waza, and as of 2013 it is illegal to touch the legs whatsoever during tachi-waza. I have heard multiple ...
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What type of throw is the Laats' Dive-In?

The "Laats' Dive-in" (named after its use by Johan Laats) is often described as a variant of kata-guruma avoiding grabbing the leg. However, I have seen some debate as to how the throw should actually ...
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Why were leg-locks removed from Judo?

Early judo contained (in addition to strangles and arm-locks) various types of leg-lock. At some point in the early 20th century all leg-locks were banned in both randori and competition, and removed ...
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Is there a pin in Judo that cannot be classified as a standard pin?

I was recently inspired by this question: Do pins in judo have to be standard pins? The answers given are obviously correct as the Judo definition of a pin is a lot more loose than what the question ...
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Origin of kawazu-gake?

There have been multiple proposed etymologies for the judo throw kawazu-gake (河津掛): Named after a famed sumo wrestler, Kawazu Saburo Sukeyasu Named after "frog" (蛙 old japanese kawazu, ...
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9 votes
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Why is the first dan called shodan, as opposed to ichidan?

Subsequent dan grades in judo are named numerically nidan (二段), sandan (三段) etc, but the first grade is called shodan (初段) "beginning grade". Is there a particular reason for this as opposed to the ...
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5 votes
1 answer
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Why was blue chosen to distinguish competitors' judo-gis?

In the 90's the IJF introduced a requirement for one competitor to wear a blue gi, and the other a traditional white gi, in order to better distinguish them during high level competitions.1 Was there ...
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6 votes
1 answer
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What is the difference between kosoto-gari and kosoto-gake?

Kosoto-gari and kosoto-gake are superficially similar techniques. I have seen many high level judoka call what I would have called -gari -gake and vice versa - what distinguishes these techniques?
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4 votes
1 answer
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Etymology of tomoe-nage?

Tomoe-nage is often translated as "stomach throw" or "circle throw", but these are not direct translations. What does tomoe mean, and why is the throw called this?
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12 votes
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De-ashi-harai or De-ashi-barai?

I have seen 出足払 ("advancing foot sweep") written two ways by the Kodokan, with the 払 part transcribed as 'harai' (は)1 or 'barai' (ば).2 3 How is the name of this technique pronounced in Japanese? With ...
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4 votes
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How are armlocks categorised in Judo?

I had always thought that the distinction between ude-garami and ude-hishigi-...-gatame was that the former referred to bent arm figure-four elbow/shoulder locks and the latter referred to armbars (...
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Are there any Judo techniques which are illegal in BJJ?

Judo and BJJ both stem from early 20th century judo, but over time have focused on different aspects of the martial art - broadly tachi-waza and ne-waza respectively. Additionally, they are mostly ...
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What is the difference between judo and wrestling?

Wrestling involves pinning, choking, and making someone fall to the ground. The same features are involved in judo. What is the difference between judo and wrestling?
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Is there a canonical resource for the classification of Judo mat techniques?

For throws, I use Toshiro Daigo's book Kodokan Judo Throwing Techniques published by Kodanasha International, Tokyo 2005. It specifically addresses some of the arcane points of Kodokan classification ...
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Is there a way to reliably attack only a bent elbow joint with ude garami (Kimura, Americana)?

Joint locks in judo must nominally be on the elbow joint only. Ude garami, translated as the entangled arm lock and with variants are known as the Kimura or Americana in BJJ, often affects the ...
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Why grip with only three fingers?

I have heard a number of judoka promote gripping with only the lower three fingers (pinky, ring, middle) as opposed to all five. I've sometimes heard this referred to as the 'Japanese grip'. Is there ...
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Is there such a thing as a toxic sensei? How to deal with one like that?

TL;DR: I think I'm viciously / discreetly getting bullied at judo by my sensei and higher ranked (sensei is Japanese so I'm pretty shocked about it). Also, I was hit, he discreetly asked other ...
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7 votes
2 answers
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Source: Hélio Gracie being offered a Kodokan Belt and refusing?

I remember reading somewhere that, way down the line, the Kodokan offered Hélio Gracie a high dan ranking, and to absorb what had become BJJ back into the world of Judo. Hélio refused, presumably ...
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4 answers
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What is traditionally written on a judo belt?

I recently passed a Dan exam and would like to get rid of my old, cheap belt. I would like to buy a higher grade belt and have some inscriptions on it. I plan to take a Kusakura obi with the Kodokan ...
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8 votes
5 answers
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How to deal with a judoka who is not gentle?

First of all, I'm a beginner. White belt (not even a month of practice). At wikipedia, they said Judo literally is "gentle way". My sensei told me so too... When I do randori with higher rank, they ...
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5 votes
2 answers
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When/why was the list of Kodokan Judo throws and ground techniques recently expanded?

Toshiro Daigo's book Kodokan Judo Throwing Techniques published by Kodanasha International, Tokyo 2005 lists 67 throwing techniques. As Daigo is the chief instructor at the Kodokan, I took this as the ...
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Are there martial arts known to synergize with Judo?

Intro Following a bit of studying, I have found that I am interested in learning Judo, as it matches my life philosophies of being gentle but not defenseless. However the schools of Judo accessible to ...
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Why do people wear frayed black belts? [closed]

There seems to be a pride in using a beaten up belt. Isn't a belt cheap, shouldn't a MA practitioner be in clean and well maintained attire ?
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6 votes
6 answers
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How can I practice any martial art if I have difficulty with motor and coordination skills?

I would like to practice a martial art full time for the sake of getting fit and dealing with my personal issues, but the problem is that I don't have much coordination with my body, and I can't ...
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6 votes
2 answers
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Would aikido high feather falls work in judo?

By the title one should notice there is a distinct way to fall in Aikido. In judo & most karate like styles i have never seen these types of falls. In most Japanese like systems the ukemii is ...
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