Koshi Guruma, also known as the “Hip Wheel,” is a classic judo and jujitsu throw that leverages the power of your hips and body rotation to throw your opponent. Here’s a step-by-step description of how to perform Koshi Guruma:

1. Establish a Grip: Begin by securing a strong grip on your opponent’s collar with your lead hand. Your other hand should wrap around the back of your opponent’s neck, gripping the seam of the Gi under the arm pit. . This hand placement gives you control over their upper body and helps set up the throw.
2. Position Yourself: Step in close to your opponent, aligning your hips with theirs. Your lead leg should step between their legs, while your back leg steps around, positioning your hips directly in front of them. This positioning is crucial as your hips will be the fulcrum for the throw.
3. Break Their Balance: Use your grip on the collar and the hand around their neck to pull your opponent forward slightly. This action shifts their balance onto their toes, making them easier to throw.
4. Turn Your Hips: As you pull your opponent forward, simultaneously turn your hips so that your back is pressed against their torso. Your hips should be lower than your opponent’s, creating a strong base for the throw.
5. Execute the Throw: Once your hips are in position, rotate your upper body, using your grip on their neck to pull them over your hips. As you do this, straighten your legs slightly to lift their feet off the ground, using your hips as the pivot point. The rotation and lift will cause your opponent to be thrown over your hip in a wheeling motion.
6. Follow Through: After executing the throw, maintain your grip and control over your opponent. Be ready to follow them to the ground, transitioning into a dominant position such as side control or securing a pin.
7. Secure the Position: Once your opponent is on the ground, quickly establish a secure position, maintaining control to prevent any escape or counter-attack.

Koshi Guruma is an effective throw because it combines leverage, balance-breaking, and body rotation. It is particularly useful against opponents who are upright or pushing forward, allowing you to use their momentum against them.