### Double Under Pass - Step-by-Step Guide
#### Introduction
The Double Under Pass is a fundamental guard passing technique used in Brazilian Jiu Jitsu (BJJ), designed to defeat your opponent's guard by controlling both of their legs from underneath. This pass uses leverage and pressure rather than speed or agility, making it highly effective for practitioners of all sizes.
#### Position
- **Starting Position:** Open Guard
#### Step-by-Step Technique
1. **Control the Legs:**
- Begin by kneeling in front of your opponent who is in the open guard position.
- Place your hands between their legs and cup your palms against the back of their thighs or hamstrings.
- Pull their hips towards you to create tension in their legs and eliminate slack.
2. **Establish Double Underhooks:**
- Slide both of your arms underneath their legs and secure a double underhook.
- Grip your hands together, preferably locking your fingers or creating an S-grip below their buttocks.
3. **Create Pressure:**
- Drive your shoulders forward and upward into their thighs to begin lifting their hips off the ground slightly.
- Keep your elbows tightly against your own ribs to prevent them from re-initiating guard or countering.
4. **Get to Your Toes:**
- Plant your toes into the mat for stability and start positioning your hips high to add pressure.
- Keep your neck firm and your chin tucked towards their body, remaining tight throughout.
5. **Flatten the Opponent:**
- Walk your opponent backward on their shoulders and use your shoulder pressure to control their movement.
- Adjust your grip by sliding it towards their lower back, keeping constant tension.
6. **Pass the Guard:**
- Circle towards one side of their body; usually, whichever side you feel the opponent is weaker.
- Simultaneously pin their legs towards the mat and slide your body around their legs.
- Use your other hand to control their hips, passing your torso across into side control.
7. **Secure Side Control:**
- As you come around their legs, ensure your hips make full contact with the mat.
- Establish a stable side control with underhooks, crossface, or any other preferred grip.
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#### Important Details
- Always maintain pressure on your opponent’s legs and hips throughout the pass.
- Keep your head low and shoulder engagement steady to prevent counterattacks like triangles or omoplatas.
#### Final Notes
The Double Under Pass can be adjusted and combined with alternative grips or strategies, such as transitioning into various types of passes, making it a versatile tool for any BJJ practitioner's repertoire.
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