Harai Goshi BJJ: White Belt Biomechanical Guide

1. Standard Grip: Right-handed attacker grasps opponent's left lapel with the right hand, fingers inside the collar. Left hand grips opponent's left sleeve at the elbow joint.
2. Initial Off-balancing (Kuzushi): Pull the opponent's lapel grip upwards and towards your right shoulder, while simultaneously drawing the sleeve grip towards your left hip.
3. Footwork and Entry (Tsukuri): Step your right foot forward and slightly to the outside of the opponent's left foot, turning your body to face your left.
4. Hip Placement: Rotate your hips inward, bringing your right hip firmly against the opponent's mid-section, just below their rib cage.
5. Lowering Your Base: Bend your knees deeply, lowering your center of gravity below the opponent's, creating a stable base.
6. Lifting and Sweeping: As your hip acts as a fulcrum, sweep your right leg upwards and across the opponent's left leg, extending it as you begin to rotate.
7. Throwing Action: Continue the rotation of your torso and hips, driving your right hip forward and up, while maintaining the lapel and sleeve grips to guide the opponent over your hip.
8. Completion: The opponent should fall forward over your hip, completing the Harai Goshi throw.

• Hyperextending Knee During Sweep: Attempting to sweep the leg with a straight, locked knee can lead to a hyperextended knee joint, potentially tearing the ACL or PCL.
• Correct Movement: Maintain a slight bend in your sweeping leg throughout the motion.
• Rounding the Back During Entry: Rounding your spine as you enter for the throw exposes your cervical spine and limits your ability to generate power, risking a neck injury.
• Correct Movement: Keep your back straight and core engaged, tucking your chin slightly.
• Not Establishing a Solid Hip Connection: Failing to create a firm, continuous contact between your hip and the opponent's torso results in a weak throw and potential for the opponent to escape or counter.
• Correct Movement: Ensure your right hip is pressed firmly against the opponent's side, creating a solid pivot point.

1. Grip and Footwork Isolation: Practice establishing the grips and performing the initial footwork steps (steps 1-3 above) without a partner. 10 reps per side.
2. Kuzushi and Tsukuri Practice: With a compliant partner, practice the off-balancing and entry movements, focusing on the hip connection. 10 reps per side, 25% resistance.
3. Hip Sweep and Rotation Drill: With the partner holding a static position, practice the hip sweep and body rotation motion. 10 reps per side, 25% resistance.
4. Controlled Throwing Drill: Execute the full Harai Goshi with a cooperative partner, focusing on smooth execution and proper weight transfer. 10 reps per side, 50% resistance.
5. Dynamic Entry and Throw: Practice the Harai Goshi with a partner offering light resistance, allowing them to move slightly. 10 reps per side, 75% resistance.
6. Live Rolling Application: Attempt Harai Goshi during rolling sessions, prioritizing technique over outcome. 5 attempts per round, 90-100% resistance.

• WHEN TO ATTEMPT:
• When your opponent is leaning forward, creating an opportunity for off-balancing.
• When your opponent is posturing up from a failed guard pass attempt.
• When you have established a strong collar and sleeve grip that allows for good control.
• PRIMARY COUNTERS:
• Inside Control and Foot Sweep Defense: If the opponent attempts Harai Goshi, immediately establish inside control of their sleeve and lapel with your hands. Simultaneously, slide your foot out to break the connection of your leg to their sweeping leg, stepping back to maintain your base.
• Forward Roll Escape: As the opponent initiates the throw, if you feel yourself being lifted, perform a forward roll over their shoulder, essentially rolling with the throw to escape the position.
• Counter-Throw (e.g., Osoto Gari): If the opponent's entry is slow or their base is unstable, you can attempt a counter-throw like Osoto Gari by stepping out and sweeping their far leg as they commit to their hip.

Watch step-by-step breakdowns from black belt instructors: