SUTEMI-WAZA (sacrifice) · BROWN
Tani-otoshi
Also called valley drop
Their throw begins and yours finishes: drop behind the heels and take the valley down.
OfficialKodokan — 浮技 & 横落 & 谷落 / Uki-waza & Yoko-otoshi & Tani-otoshi
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In these systems
Georgian
Chidaoba wrestling roots: unorthodox grips and pickups that bend the rulebook.
Russian / Dagestani
Sambo-crossover judo: grip fighting as war, low sacrifice attacks.
World champion at -81kg
Tato Grigalashvili
The Georgian school live: over-the-back grips and pickups that referees are still debating.
Canon: the Kodokan 100 (68 nage-waza, 32 katame-waza; IJF/Kodokan classification) · Daigo, Kodokan Judo Throwing Techniques · Kashiwazaki