01 / AT A GLANCE
Yoko-guruma: the defining action
Yoko-guruma is a side wheel used in a countering relationship against a throwing attack. The Kodokan definition describes hip control, a leg threading between the opponent’s legs and a twisting side sacrifice that carries uke over the body.
Name and scope: Yoko-guruma (横車), commonly rendered as side wheel, belongs to Yoko-sutemi-waza. Searches for “yoko guruma” and the hyphenated spelling refer to the same official technique here. An informal nickname should be checked against the actual action before being treated as a separate technique.
Position convention: In this form, tori’s left arm controls uke around the hip, the right leg slides between uke’s legs from the front and tori twists down onto the left side. Fix this orientation before adding a particular incoming throw. Tori means the person performing the technique and uke the receiving partner. When reviewing a mirrored camera image, identify each person’s own sides first. Reverse the whole relationship for a left-sided lesson rather than changing one limb while preserving incompatible directions elsewhere.
The intended reader can already practise under supervision and wants to connect demonstration, diagnosis and decision-making. For yoko-guruma, the central question is: connect the hip, thread the leg and wheel through the side descent. Beginners can study the shape with a coach; applying it against variable resistance requires the additional recognition and control work below. The article does not assign a universal belt level or promise that one body type will succeed automatically.
02 / WATCH THE TECHNIQUE
Official demonstration and a second viewing reference
Open this video on YouTube if the player is unavailable.
Open this video on YouTube if the player is unavailable.
Follow the left arm around the hip and the right leg between the legs, then the left-side twist. The IJF technique page lacks a full written definition in the retrieved version, so the linked Kodokan definition supplies the classification detail.
Official reference: Kodokan. Second demonstration: Efficient Judo. Open the publisher links if either embedded player is unavailable.
A practical viewing question is: “What brings uke’s pelvis into the wheel before I surrender my standing base?” Compare that question across the official and second reference. Differences in speed, partner stance or grip route may explain different appearances. Do not combine isolated details from incompatible versions into one repetition. No timestamps or claims about unseen scoring sequences are supplied here.
03 / WHEN TO USE IT
Recognise an opening and recognise its absence
A usable starting relationship
The incoming attack has left a close hip connection while tori can still bring uke forward and thread the right leg without trapping a knee. There is clear space for the left-side descent and the resulting wheel.
The selected Kodokan form uses the left arm around uke’s hip and the right leg sliding between uke’s legs from the front. That hip connection must bring the pelvis into the same forward wheel as the shoulder line. Before descending left, check that the threading route is clear and that tori still controls an independent base. Close contact at the waist alone is insufficient when a planted leg blocks the route.
When the same shape is not an opening
Tori is already being carried through the original throw, the hips are distant or the threading leg would collide with a planted knee. Falling sideways does not repair a missing hip connection.
If the hips withdraw, the left arm can remain around clothing while the pelvis leaves the rotating relationship. A sideways fall from that position often leaves uke above tori. Compare the withdrawn position with a close hip connection while both partners stay standing. Tori should be able to describe how the pelvis follows before attempting the sacrifice. If the only available movement is a backward lean, rebuild the entry instead of calling it a forward wheel.
Movement to invite or read
Start from a coach-arranged close hip relationship and rehearse the leg route without falling. Add a small side descent before incorporating a moving incoming attack. In an opposite-lead or unfamiliar grip arrangement, have the coach map the relevant limbs again. The fixed convention in this article provides a reference for comparison; it does not guarantee that the same approach distance survives every stance.
04 / HOW IT WORKS
Connect the grips, support and finishing action
Hands and upper-body connection
The left arm contains the hip while the remaining grip controls the upper body. The connection draws uke into the forward wheeling relationship rather than pulling the hips backward as the shoulders are sent forward.
Feet, hips and available support
Slide the right leg between uke’s legs from the front in the demonstrated line. Coordinate that placement with the left-side descent; do not scissor the legs or use a planted knee as the wheel’s fulcrum.
Complete the action under control
Twist and fall onto the left side while maintaining the hip and shoulder connection so uke rotates over the body. Guide the landing and keep the head clear of the passing torso rather than forcing a backward arch.
Study the relationship beneath the visible shape
The hip connection and threaded leg need to be studied as one route. A leg between the opponent’s legs is not sufficient if the pelvis remains distant, and a close hip grip is not sufficient if the leg route is blocked. Rehearse the two conditions while both partners remain standing. The observer follows the pelvis, the threading knee and the space into which tori will descend. Only combine them with a sacrifice when the route is clear.
The forward balance direction distinguishes this wheel from a backward collapse. A defender under pressure may instinctively fall away from the attack, but that response can pull the partner onto the body without the intended rotation. Use the Kodokan definition and demonstration to identify how the connected torso is brought into the wheel before the left-side descent. The body action should remain understandable at low speed.
05 / KEY POINTS
Four cues with observable checks
Keep the defining mechanism visible
Connect the hip, thread the leg and wheel through the side descent. Ask the observer to describe that action before commenting on power. If a repetition succeeds through a different mechanism, record what actually happened. A fall or escape can be useful without proving that the intended yoko-guruma relationship improved.
Verify the position before adding commitment
Before the descent, the observer should identify the left hip-control arm and a clear path for the right leg between the legs, with uke’s body following forward. Use this as a brief checkpoint in cooperative practice, then remove the pause as coordination improves. The checkpoint is not a recommendation to freeze during a live exchange; it is a way to identify the relationship that must survive movement.
Preserve the correct stopping decision
Use a coach-arranged unavailable position to check your decision before adding resistance to yoko-guruma. The precise release or reception boundary is described in the defence section below. Otherwise, a partner who always supplies the ideal opening can teach commitment without teaching selection. A correct reset belongs in the practice record alongside a controlled completion.
Make the result lead to a next position
The wheel can carry uke across tori’s body and may permit a follow into top control. It can also end with tori underneath if the hip connection separates, so the actual landing relationship must be observed. The observer should describe the actual ending, not the intended ending. That description determines whether the next task belongs to finishing, stabilising on top or recovering underneath.
06 / PROBLEMS & ADJUSTMENTS
Diagnose the earliest cause before changing force
Tori reaches the mat but uke remains upright, straddling or stepping around the body.
The hip connection may be too loose to bring the pelvis into the wheel. The descent may begin before the upper body has been directed forward. These are competing explanations to investigate, not a diagnosis made from the result alone. The next repetition should reveal which relationship fails first.
Test: Rehearse hip connection and forward guidance without sacrifice. Then practise the threading path without a throw. Combine them only when the partner’s pelvis and shoulder line respond together. Adjustment: Shorten the distance at the hip and establish forward following before committing to the side descent. Keep the other conditions as similar as practical for the comparison. An improvement in the relevant connection is more informative than one accidental completion after several unrelated changes.
Threading foot repeatedly catches uke’s leg
If the threading foot repeatedly catches a leg, simplify the starting stance and slow the approach. A leg collision is information about the route, not an invitation to kick through the obstruction. For yoko-guruma, partner feedback should identify where the action was felt and when it changed. Combine that report with the observer’s view; an outside camera and an inside contact sensation provide different pieces of evidence.
Diagnose straddling: hip connection or blocked route
If uke ends straddling tori, inspect whether the hip moved with the shoulder line before the descent. The hands may have pulled the upper body while the pelvis stayed outside the rotating relationship. Alternatively, the hip may have followed but the threaded leg route may have been blocked. These require different corrections: closer coordinated connection in the first case, a clearer route or a decision not to attack in the second.
Do not repair a blocked route by driving the leg through the partner’s knee. Reset the stance and have the coach examine the entry. The counter should exploit an available relationship, not manufacture one through a joint collision. This is especially important when the incoming throw changes the position of the supporting foot during the approach.
07 / SETUPS & COMBINATIONS
Make the next action depend on a response
First route: starting position, response and continuation
Uke begins a controlled turning attack that leaves a close hip relationship. Tori preserves balance, obtains the described hip control and chooses yoko-guruma only when the forward wheel and threading route remain open. If the original attack has already taken the body, receive it instead.
Use a coach-selected turning attack that leaves the close hip relationship described here. Uke alternates that accessible position with an early hip withdrawal. Tori connects the left arm, checks the right-leg lane and commits only for the accessible response. The observer should watch the pelvis before the descent. If the shoulders move but the pelvis stays outside, return to the standing connection rather than trying a larger sacrifice to force the wheel.
Second route: recovery or change of direction
If uke withdraws the hips before the leg threads, stay standing and recover facing posture. A subsequent attack belongs to the next stance. If tori has already descended without the wheel, switch to a ground recovery task rather than forcing the original standing sequence.
When uke withdraws before the right leg threads, tori should stay standing and return to facing grips. Do not slide after a moving knee to preserve the planned route. If the sacrifice has already started without taking uke over, turn toward the opponent and organise a defensive ground position. This is a meaningful outcome to practise, because the hip grip can feel strong even when it no longer prevents uke from remaining on top.
08 / DEFENCES & COUNTERS
Separate prevention, recovery and a counter opportunity
The original attacker can reduce the opening by maintaining the intended loading direction without a static exposed hip position. The defender should distinguish an available side wheel from a late sideways collapse under a successful throw.
Stop boundary: Do not sacrifice when the threading path is blocked, the hip grip is distant or the landing corridor is occupied. Once underneath without rotation, protect position and face the opponent. The receiving partner must retain an agreed ukemi response when the original attack has succeeded. Do not replace reception with a desperate straight-arm post or a joint-twisting rescue.
The original attacker can reduce the opening by maintaining the intended loading direction rather than pausing with the hips exposed. Rehearse an early connected hip position and a controlled successful original throw separately. Tori prepares the wheel only while the forward direction and threading lane remain available. After the original attack has taken the body, receive it. Falling sideways under a completed load is not equivalent to the described countering relationship.
09 / GROUND TRANSITIONS
Read the position after the main action
When on top, clear the threaded leg and establish chest contact before a hold. When underneath, use frames and a facing position to recover a stable guard rather than clinging to a standing hip grip that no longer controls the torso.
After a successful wheel, tori may still have the right leg threaded between uke’s legs. Free that relationship before settling heavy top pressure, and identify whether the near shoulder is controlled. If tori ends underneath, release a waist grip that prevents turning to face and establish frames. The same grip that was useful while standing may impede recovery on the mat. Practise both arrivals from a quiet end position before adding a rapid follow-through.
A completed throw and an established hold are separate outcomes. A controlled landing can still require leg clearance or shoulder repositioning before useful top control exists. Compare the actual yoko-guruma ending with the planned one, and practise the common arrival independently if it repeatedly becomes the weak part of the sequence.
10 / PRACTICE PROGRESSION
Progress from a clear shape to a real choice
Stage one: make the reference repeatable
Use the stated yoko-guruma convention with a cooperative partner. Begin slowly enough to identify the grip and support roles, and stop before completing an action that has lost its defining connection. Progress when both partners and the observer can describe the same relationship without guessing. Repetition count alone does not establish readiness.
Stage two: introduce the movement cue
Revisit the specific moving relationship described under “When to use it” for yoko-guruma. First keep its direction predictable, then vary its timing while preserving the same grips and side convention. Keep resistance modest while the cue changes. If the reference shape disappears on every moving attempt, reduce the step or escape amplitude and preserve the correct direction rather than forcing a finish.
Stage three: require a decision
Uke offers either a connected hip position with a clear threading lane or an early hip withdrawal. Tori chooses the wheel preparation only in the first case. A useful round includes a correct continuation and a correct decision not to continue. Record both. When these choices remain clear, increase unpredictability before increasing force, with the coach deciding what the pair can control.
Stage four: constrain the exchange, then broaden it
Practise the ground outcome independently after the standing route is understood. From a controlled end position on top, clear the threaded leg and establish chest contact. From a failed wheel underneath, face the opponent and recover frames. These are different tasks, and both should be available before the sacrifice is used in less predictable practice.
For a choice round, uke presents either a close connected hip position or an early withdrawal. Tori prepares the wheel only for the close position. Later, vary the threading lane within safe limits so tori must also recognise when the hip is close but the leg route is unavailable. Recording these declined attempts helps prevent a habit of sacrificing whenever any waist grip is obtained.
11 / COMPETITION EXAMPLE
A named official replay selection to study
Verified selection: Margaux PINOT vs Assmaa NIANG — Paris Grand Slam 2024. The IJF technique library includes this contest in its Yoko-guruma replay collection for Assmaa Niang. The listing verifies the named pairing, event, technique tag and the athlete credited with the action. It does not by itself establish the final score, a precise timestamp or a complete tactical account.
Use the selection to investigate one question: “What brings uke’s pelvis into the wheel before I surrender my standing base?” Before the tagged action, identify the grips and movement that made the situation possible. During the action, compare the defining connection with the official demonstration. Afterward, identify recovery and position. If the player or angle does not show one of those phases, leave that part of the observation blank rather than inferring it from the tag.
A useful competition note for yoko-guruma separates three things: what the official listing states, what you can actually see in playback and what you propose to test in practice. This article confirms the first and supplies prompts for the other two. It does not present an unviewed sequence as a frame-by-frame analysis, nor treat historical footage as certification under current event rules.
12 / VARIATIONS & COMPARISONS
Keep neighbouring techniques and variants distinct
Sumi-gaeshi uses a different leg-assisted sacrifice relationship. Tani-otoshi takes a rearward direction and should not be substituted by simply falling to the opposite side. Yoko-guruma is identified by the connected side wheel, not by any counter ending on the side.
Sumi-gaeshi uses a different leg-assisted backward sacrifice, while tani-otoshi directs the opponent toward a rearward fall. Uki-waza offers a front-corner side-sacrifice comparison without the same hip-and-threading description. For yoko-guruma, keep the pelvis connection, right-leg route and left-side twisting wheel together. Borrowing only the falling direction from a neighbouring technique can reverse the intended mechanism.
13 / YOUR NEXT PRACTICE
One task, one observation and one next decision
Task: Rehearse six connected hip-and-thread positions, naming the forward wheel direction before adding the descent.
Record: Record hip distance, unobstructed leg route and whether uke’s trunk followed before tori touched the mat. Use the practice record template or the practice tools described in Judo AI. Include the starting stance, partner response and the single adjustment tested, so the observation remains interpretable at the next session.
Illustrative example — not measured user data: A sample set finds four clear threading routes and two blocked by stance. Of the four clear routes, three retain hip connection during lowering. The next practice isolates the one separating connection rather than forcing the two blocked routes.
Coach question: “What brings uke’s pelvis into the wheel before I surrender my standing base?” Bring one clear success and one clear failure if recording is permitted. For yoko-guruma, choose the next drill from the earliest difference between them. Keep an adjustment that improves the intended connection across several comparable attempts; revise it when the predicted change does not appear. The purpose of the record is a better next decision, not a decorative count of repetitions.
14 / SOURCES & REVIEW
Sources, authorship and review
Kodokan official technique names establish the name and category. The IJF Yoko-guruma definition and video library and linked Kodokan demonstration are the primary technical references. The second video above is credited separately. The official replay listing in section 11 verifies the named contest and technique tag, not an unviewed score or every coaching proposal here.
The Kodokan definitions of judo techniques (October 2022) provide the additional primary reference for the specific limb relationship described in this guide.
By Judo AI · Editorial review: October 9, 2026. Definitions, source identity, article consistency and links have been checked. Practice tasks and diagnostic questions are editorial proposals to discuss with your coach, not a validated training protocol. Named technical-coach approval is still pending. Video identities were verified; complete playback and every contest detail have not been independently analysed.
Rules and scope: this is a supervised judo study guide, not a current refereeing manual. Historical footage does not establish current rule permissions. Ask your coach to check the applicable age group and event rules before using grip variations or submissions in shiai; this draft does not certify their legality. Stop a practice action when your partner taps, asks to stop or reports pain.