A duck under uses a tie-up to slip under the opponent’s arm and get behind them. From a collar tie, pull their head down, lift their elbow with your other hand, change levels, step across, and pop your head up behind their armpit to take their back.
Duck under steps
| Step | Key point |
|---|---|
| Tie-up | Collar tie and elbow control |
| Create reaction | Pull the head so they push back up |
| Level change | Drop your hips under their arm |
| Step through | Step deep across their body |
| Head pop | Head comes up behind the armpit |
| Finish | Get behind and bring them down with control |
Tips
- Set it up with head snaps and pressure.
- Keep your back straight when changing levels.
- Step deep; a short step lets them square up.
- Drill it both sides.
- Chain it with a slide-by or single leg.
This article is general information, not medical advice. Check with a doctor or qualified professional before starting a new exercise program, especially if you have an injury or health condition.
Frequently asked questions
When does a duck under work best?
When the opponent pushes into a collar tie with their arms high.
How do I defend a duck under?
Keep your elbows in and stay square.
Is a duck under a takedown by itself?
It gets you behind the opponent; you still need to bring them to the mat with control to score.
