Ko-uchi-gari — the minor inner reap

What is Ko-uchi-gari — the minor inner reap?

Ko-uchi-gari (小内刈) is the minor inner reap: you sweep uke's foot away just as it takes weight or moves.

How does Ko-uchi-gari — the minor inner reap work?

Where o-uchi-gari takes the whole leg, ko-uchi-gari targets the foot — usually in the direction of the toes. The throw is entirely about timing: the right moment is the split second uke places their foot. Fast judoka use ko-uchi as a first attack to test reactions, or as a second attack behind a shoulder-throw threat.

ko-uchi-gari in Amsterdam dojos

Spacious Zuidoost halls allow ko-uchi in randori as the only ashi in theme rounds. ko-uchi-gari is rarely drilled in isolation here: coaches link it to ashi-waza, with slow uke drills before pace and theme randori. Parents know the name from pools; what they miss is the quiet before the throw — grip, angle, timing. After class ask which cue was central that week.

What ko-uchi-gari actually is

ko-uchi-gari belongs to ashi-waza. minor inner reap, often as setup or quick score at close range You learn the full chain: kumi-kata, kuzushi, entry, finish and partner ukemi. Without that chain ko-uchi-gari stays a trick on cooperative ukes. Pedagogically the line sits close to Kodokan teaching; competition variants follow IJF criteria for grip and landing. Dutch clubs map that onto JBN kyu programmes. Ask which variant your club teaches (classic versus modern grip) so you do not mix two systems. Film one slow-motion entry each week. Most progress in ko-uchi-gari lives in the first two seconds — foot angle, elbow height, pull direction — not in a spectacular mirror finish.

How to train ko-uchi-gari safely

tempo drills: three ko-uchi entries without throw, fourth with throw Safety for ko-uchi-gari: enough distance to the mat edge, an uke who knows the fall, and volume that drops when the group is tired. Children start with uchi-komi without full projection; only then nage-komi. Core mistake: standing too wide so your own balance fails before uke’s Halve the pace and let your sensei coach only the entry until it is clean. Add power again only after three clean reps in a row. Partner agreements: switch left/right, switch who is tori each minute, and stop with a clear tap signal. ko-uchi-gari without communication is how injuries happen — not how belts are earned.

ko-uchi-gari in shiai and scoring

ideal to break a stiff grip before a larger throw Referees judge force, control and landing surface. One clean ko-uchi-gari outweighs two half-hearted attempts. Also drill the exit: release dangerous grips after the throw. Amsterdam pools often reward quick, clean landings. Combine your own shiai video with club feedback; online glamour clips miss shido risks (passivity, illegal grips) that do get called in Noord-Holland halls. After each pool note: which setup led to ko-uchi-gari, which grip failed, which opponent ukemi was awkward. Those three lines accelerate your next class more than randomly training harder.

Exams and progression for ko-uchi-gari

on exams coaches watch whether the reap actually moves the leg On JBN kyu exams you show ko-uchi-gari inside a throw set plus ukemi. Higher belts demand cleaner kuzushi and left/right on a moving uke. At dan level kata matters; individual nage-waza stays coach-dependent. Checklist before exam night: grip, angle, foot placement, finish, uke communication — signed off by your sensei. Without that list, “I can do ko-uchi-gari” is not evidence. For children: do not schedule an exam in the same week as a heavy tournament. Recovery and sleep outweigh one extra training night of poor ko-uchi-gari reps.

Local choices around ko-uchi-gari

Spacious Zuidoost halls allow ko-uchi in randori as the only ashi in theme rounds. Use the dojo guide to find a club where ko-uchi-gari sits in the syllabus, not only as a show for parents. Calendar clinics that deepen this exact technique are gold. Then read knowledge pages on kuzushi, kumi-kata and ukemi — the building blocks under ko-uchi-gari. Sources below are federation- or institute-grade; we rewrite claims and never copy official sentences. If torn between clubs: visit two trials and watch how coaches correct ko-uchi-gari. That correction language predicts your learning curve better than website photos.

Practice block 1: ko-uchi-gari

ko-uchi-gari deserves its own microcycle inside ashi-waza. Monday: uchi-komi aimed at minor inner reap, often as setup or quick score at close range. Wednesday: tempo drills: three ko-uchi entries without throw, fourth with throw. Friday: light nage-komi actively avoiding: standing too wide so your own balance fails before uke’s. Weekend: only mobility, breathing and a three-minute ukemi review — no max power. That keeps the nervous system fresh and stops ko-uchi-gari from grinding into a sloppy habit. Each evening note one sentence about what the sensei corrected; after fourteen days you see patterns video alone will not show.

Practice block 2: ko-uchi-gari

Parent communication around ko-uchi-gari: explain this is ashi-waza, not an isolated trick. Shiai side: ideal to break a stiff grip before a larger throw. Exam side: on exams coaches watch whether the reap actually moves the leg. Local colour: Spacious Zuidoost halls allow ko-uchi in randori as the only ashi in theme rounds.. Ask parents not to give YouTube tips that cross the syllabus. Offer slow-motion visualisation of the entry and chin-tuck on imaginary ukemi, without throwing on carpet.

Practice block 3: ko-uchi-gari

Error lab exclusive to ko-uchi-gari: film three attempts from the side. Mark kuzushi with a pause in the video. If standing too wide so your own balance fails before uke’s is visible, stop the set immediately. Reset to uchi-komi at 50 percent pace until three clean reps land in a row. Do not reuse this lab for another throw in the same class.

Practice block 4: ko-uchi-gari

Transfer and recoveries for ko-uchi-gari: can you still set it up after the first grip fails? Drill second-chance entries with an uke who disrupts the grip. Competition-minded Amsterdam clubs build this into theme randori; recreational groups stop at clean nage-komi. Both choices are legitimate when the sensei makes it explicit.

Practice block 5: ko-uchi-gari

Season placement of ko-uchi-gari: do not stack it with a heavy tournament plus an exam in the same week. Choose build, peak or maintenance mode with matching volumes. Children in school exam week and adults in a work crunch choose maintenance. The technique is patient; your calendar must be too.

Practice block 6: ko-uchi-gari

Sources and claims about ko-uchi-gari: use Kodokan/IJF for technique and contest, JBN for Dutch exams. Always rewrite in your own words. On conflicting grip details, the club line wins for class and the federation source for exam facts.

Practice block 7: ko-uchi-gari

Deepening case for ko-uchi-gari: describe a concrete Amsterdam class situation (youth or senior) where this concept went wrong, which cue the sensei gave, and how the next three sessions were adapted. Write at least eighty words in your log; without that case theory stays floating. Then attach a measurable drill (time, reps or checklist) that applies only to this concept.

Practice block 8: ko-uchi-gari

Check moment for ko-uchi-gari: have a partner quiz you with five open questions that cannot be answered yes/no. Note gaps. Schedule a remedial drill within seven days. This check does not replace a federation exam but prevents discovering shaky definitions only on exam night.

Practice block 9: ko-uchi-gari

Integration with neighbouring concepts around ko-uchi-gari: pick two knowledge pages that logically sit beside it and write a paragraph on how they reinforce each other on the mat. Read that paragraph aloud to your sensei for correction. That builds a network of ideas instead of isolated lemmas.

Practice block 10: ko-uchi-gari

Quality bar for ko-uchi-gari: state when you are satisfied (for example three clean reps, a faultless etiquette sequence, or a clear parent explanation). Share that bar with your coach. Without your own bar, progress stays vague and you only compare yourself to others.

Examples

• Ko-uchi on the step — a timing throw
• Combination seoi-nage into ko-uchi-gari
• Ko-uchi-makikomi — wrapping variant

Our sources

• Kodokan Judo Institute
• IJF — Documents & rules
• Judo Bond Nederland