How to Do the Duck Under in BJJ
The duck under is a quick takedown that gets you behind your opponent by "ducking under" their arm. It's effective when they have an overhook or reach for your head.
✓ Key Details to Master
- 1 From collar tie or when they reach for your head
- 2 Duck your head under their arm while stepping
- 3 Pop up behind them immediately
- 4 Lock your hands around their waist
- 5 Take them down with a trip or lift
✗ Common Mistakes to Avoid
- ⚠️ Ducking without stepping through
- ⚠️ Staying bent over too long
- ⚠️ Not immediately securing behind
- ⚠️ Telegraphing by looking at the arm
- ⚠️ Losing connection during duck
🔄 Variations
- → Russian tie duck under
- → Collar tie duck under
- → To single leg
🛡️ Counters & Defenses
- → Whizzer as they duck
- → Spin away
- → Crossface
Track Your Duck Under Progress
Log every time you practice the Duck Under and watch your proficiency grow. MatTime helps you build muscle memory by tracking what you actually drill.
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Frequently Asked Questions
What belt level should I be to learn the Duck Under? ▼
The Duck Under is typically introduced at the white belt level. However, higher belts continue to refine this technique throughout their BJJ journey. The beginning of the BJJ journey. Focus on survival, basic positions, and fundamental movements.
Does this work in both gi and no-gi? ▼
The Duck Under works in both gi and no-gi, though grip adjustments may be necessary. In no-gi, focus on body control and underhooks instead of gi grips.
How do I set up the Duck Under? ▼
The Duck Under is typically executed from standing. Key setups include controlling your opponent's posture and creating the right angle. Practice the entry repeatedly before focusing on the finish.