Shime waza

1) Surfing the web I found this choke; what is it? https://www.youtube.com/watch?v=5kHjF5OkwMs Never heard before; is it allowed in shihai?

2) Is kakato jime allowed? https://www.youtube.com/watch?v=6o0KZZehZVI

3) In IJF matches I've seen sometimes this choke (Riner performed twice or thrice years ago) https://www.youtube.com/watch?v=TihIlJ2Re0c why isn't it included in Kodokan technique list? http://kodokanjudoinstitute.org/en/waza/list/#a2-3

I found that:
1) It is a variation of okuri eri jime.
2) No, it shouldn't.
3) Because it is considered more a turn over.

1. of course it is allowed what would make it illlegal?
2. Nothing there that woudl endanger uke's neck or spine so legal. Though hard so see situation where this would be best way for attack.
2. Koshi-jime is is variation of okuri-eri-jime. No need for separate name

And may you use the gi skirt to choke uke?

You cant use the skirt to strangle, it is a shido : "To apply shime-waza using either your own or your opponent’s belt or bottom of
the jacket or using only the fingers."

And in none of the techs belt or bottom of jacket was used. Jigoku-jime I have seen is usually made using also the legh to increase the pressure

classicschmosby wrote:You cant use the skirt to strangle, it is a shido : "To apply shime-waza using either your own or your opponent’s belt or bottom of
the jacket or using only the fingers."

The belt? May you use the belt?

No, as stated above you can not use either your or your opponents belt to perform shime waza

you can use the gi skirt or belt tab to _hook_ uke's arm - you cannot wrap 360°, but think 270° - to immobilize it

petrip wrote:2. Nothing there that would endanger uke's neck or spine so legal. Though hard so see situation where this would be best way for attack.

Foot choke (kakato jime) endangers neck spine, ok; but why is sode guruma jime allowed?
Tori puts an arm of his behind the uke's neck and the other in front of it and squeezes. In my opinion it's the same applied force.

When in UFC 2 Royce Gracie defeated Remco Pardoel, he used a choke, was it an okuri eri jime?
May you use uke's lapels to choke him?

Neither kakato-jime or sode-guruma-jime endanger neck. No referee is going call it. Having pressure on neck is not same as endangering neck. That funny looking kakato-jime puts lot less pressure on neck than say ashi-gatame-jime(sankaku-jime the commonly used name). Let alone hadaka done as in kata where it is really is effecting neck(still not near being dangerous)

Just about any choke where you are behind uke and grip his lapel to choke is okuri-eri-jime. Though why you what would be proper classification of that. In fight you just choke and really do not ponder on name.

Of cource you can use lapel as it not forbidden and most chokes use lapel as one component of the choke.

Have condidered reading ther referee rules? Would answer most of your questions in one go.

https://www.judobund.de/fileadmin/_horusdam/10682-IJF-Refereeing_Rules_Juli_2018.pdf

Do ask me why that one cannot be found from IJF site, only the slide set explaining the changes seems to be there.

IJF rules start on page 84
http://99e89a50309ad79ff91d-082b8fd5551e97bc65e327988b444396.r14.cf3.rackcdn.com/up/2018/10/IJF_Sport_and_Organisation_Rul-1539980456.pdf

This document explains the main changes made since 2015:
http://99e89a50309ad79ff91d-082b8fd5551e97bc65e327988b444396.r14.cf3.rackcdn.com/up/2019/01/Explanatory_guide_of_the_judo_-1547390614.pdf

Is the choke performed at 0:20 allowed in judo competitions? https://youtu.be/MpzGSHDlR7Q
Here he was fighting a wrestler, so he hadn't a gi to grip; but in a normal judo shiai, may I do this guillotine choke during ne waza?