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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Definitions of judo kaeshi-waza

Many judo kaeshi-waza are not fundamentally different from other techniques, except that they are used as a counter to a specific attack by uke (e.g. tsubame-gaeshi is a de-ashi-barai used to counter ...
1 vote
1 answer
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Average height of competitors for each weight category in Judo?

It can be difficult to gauge whether you are in the 'right' weight category, i.e. whether you should stay around the same weight, try and lose some fat to drop a weight category, or try and gain some ...
6 votes
3 answers
428 views

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 ...
9 votes
3 answers
812 views

Judo gis for lanky players?

Lately a lot of BJJ Gi manufacturers have been making gis that are fitted for lanky players, but of those that make slim cut BJJ gis, their Judo gis are still just the standard cut (even Fushida now, ...
6 votes
2 answers
652 views

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 ...
5 votes
3 answers
320 views

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 ...
1 vote
1 answer
35 views

How long should a judo belt be?

How long should a judo belt be? Taekwondo and Karate belts for example are often quite long, with both ends dangling below the skirt of the gi, but judo belts are often worn a lot shorter. Is there a ...
11 votes
8 answers
24k views

Is the highest judo belt really red?

I found a graphic detailing belt colours according to ranks. In there, the last two judo ranks are red and white for 6-8th dan ranks and full red belts for 9 and 10th dan. Is the highest judo belt ...
12 votes
4 answers
1k views

Where can I find or how can I make a tailored white dogi for women?

Does anyone know of a good supplier of white dogi for either aikido or judo that are tailored to women? If not, does anyone know of homemade modifications that can be made to a "male" dogi to make ...
1 vote
0 answers
45 views

Judo throws which are defined as combinations of techniques?

Many judo techniques are defined as counters to attacks by uke (kaeshi-waza). However osoto-makikomi is the only one I'm aware of that is described as a combination or sequence of techniques (renzoku-...
9 votes
1 answer
323 views

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 ...
5 votes
3 answers
488 views

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 ...
4 votes
1 answer
137 views

Strength standards for elite Judo

How strong does one generally have to be to compete at elite level at judo?
2 votes
2 answers
63 views

What is the difference between Uchi-Mata and Hane-Goshi?

Classical uchi-mata involves reaping uke's back leg up and twisting them over their grounded off-balanced leg. However a common competition variant involves loading uke on tori's waist and reaping ...
3 votes
2 answers
128 views

Naming system of Judo techniques

Is there a system to the way judo techniques are named? Many techniques seem to share components of names (harai, guruma, gaeshi etc) - is there a standard uniform way these words should be ...
6 votes
2 answers
130 views

Contemporary Kodokan curriculum?

I'm quite interested in the conversation between Judo & Jujutsu, and Judo and BJJ, and was inspired by this question to inquire about the contemporary Kodokan curriculum. What is the scope of the ...
3 votes
2 answers
488 views

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 ...
4 votes
1 answer
252 views

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-...
6 votes
2 answers
496 views

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, ...
3 votes
2 answers
1k views

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 ...
4 votes
2 answers
363 views

Is the "Peruvian Necktie" legal in Judo?

"Peruvian Necktie" refers to an arm triangle choke from the sprawl position, with one leg over uke's head and the other over their back:1 The IJF rules ban arm-triangles which "block ...
7 votes
1 answer
797 views

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).
14 votes
5 answers
32k views

What submissions are not allowed in competitive Judo?

After watching a number of matches during the Olympics it seemed like a lot of opportunities for submissions weren't even pursued. In the matches I observed I only saw two legitimate submission ...
3 votes
1 answer
144 views

How has Kodokan technique classification changed over the years?

Over the years several new techniques have been added to the Kodokan judo syllabus, and some variants of existing techniques have since gained their own official names. How has technique ...
1 vote
1 answer
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Non-kodokan throws in the BJA syllabus?

The BJA syllabus lists a number of non-kodokan names for throws. Some of them are clearly names for common competition variants,1 but some I have never heard of e.g. ashi-dori, which looks to me like ...
6 votes
1 answer
388 views

How are chokes/strangles classified in Judo?

The Kodokan has numerous materials detailing the canonical versions of their shime-waza along with several variations. However, there are a large number of competition chokes (and novel chokes ...
6 votes
1 answer
505 views

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....
6 votes
2 answers
616 views

What is Uki-gatame?

In 2017 the Kodokan recognised 3 new osaekomi-waza classifications: Osaekomi-waza Notes ura-gatame Historically has referred to multiple pins, but in modern use refers to a hold with tori's back to ...
5 votes
2 answers
5k views

Why is the pistol grip banned?

What is the main reason that using of the pistol grip in judo is forbidden? The restriction of the movement or other one?
9 votes
5 answers
5k views

Should I give up my back on purpose so that I can do this throw?

I'm pretty sure the name of this throw is called Ippon Seoi Nage. It looks like this: I would say that it is fairly simple and it was one of the first ones I learned. It happens when someone takes ...
4 votes
3 answers
124 views

What to do in Double Leg Takedown while in Mid Air?

I see many resources on how to prevent a Double Leg takedown from even occurring initially, including Sprawl technique, or knee to head etc. However, how do I defend against a double leg takedown ...
4 votes
1 answer
108 views

Want to know the proper name of a Judo throw

I was taught a throw in Muay Thai of all things, which they just call a "foot sweep," but I recognize it as a Judo throw. It is shown at 2:20 in the linked video. It could be mistaken for ...
8 votes
1 answer
358 views

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, ...
9 votes
3 answers
1k views

How can I improve my technique in Judo?

When I'm in randori, the technique that I mostly do that works nicely is Harai Goshi, but I'm starting to get countered since I do it often. When I try to do something like Seoi Nage, I can never seem ...
6 votes
3 answers
858 views

What is this person talking about on the relationship between judo and BJJ?

What is this person talking about on the relationship between judo and BJJ? In this chat a person writing what to me looks like a very confusing thing they are saying, said: Actually, Judo did branch ...
5 votes
2 answers
136 views

With whom do judo beginners train?

I'm thinking about starting judo. I'm 16 almost 17 years old and don't know much about martial arts. I would like to know if I start to practice judo how will the training be? I know that at the ...
19 votes
16 answers
11k views

What are good exercises for building grip strength for judo and BJJ?

I'm looking for exercises to help maintain a grip on an opponent's gi while pulling them around. There are two elements to this: strength and endurance. Meaning, I want my grip to be hard to break but ...
8 votes
2 answers
344 views

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 ...
10 votes
2 answers
491 views

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 ...
7 votes
1 answer
145 views

Skills required for each belt?

I'm not interested in the pointing system or competition and what not. But I want to know what skills are required for each rank? (approximately) I know that there are a couple of techniques in judo. ...
3 votes
0 answers
104 views

Origin of the triangle choke?

The triangle choke as used in Judo and Brazilian Jiu-jitsu has its origins in early 20th century Judo: Original Translation Photograph from article この技法は大正十一年の高専柔道大会で六高柔道部生徒達によって初めて繰り出され、それ以降... ...
3 votes
0 answers
482 views

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 ...
3 votes
1 answer
208 views

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, ...
5 votes
2 answers
3k views

Could Non Newtonian fluids make better judo mats?

I just had a weird thought... We now have a kind of technology that cushions impacts called non Newtonian fluids. Is there a reason we are not yet making judo mats using these materials? They have ...
7 votes
2 answers
940 views

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-...
2 votes
1 answer
194 views

How are pins classified in Judo?

A number of changes have been made to Kodokan osaekomi-waza classification over the years; how are different pins distinguished in Judo?
7 votes
3 answers
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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?
12 votes
6 answers
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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 ...
3 votes
3 answers
233 views

Types of neck throws?

Are there throws in Judo or other grappling styles that involve gripping (encircling) the neck to make the throw, and, if so, how dangerous are they? (Alternately, are they impractical, unlikely, easy ...
11 votes
5 answers
2k views

Why is osoto guruma named osoto "guruma"?

Osoto gari translates to "large outer reap". That makes perfect sense as it is a large reap on the outer leg. Osoto guruma translates to "large outer wheel" and the "wheel&...