The guillotine choke: how it works and how to do it
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By Scott Flear, founder of JitsAI.
The guillotine is a choke from the front: you wrap an arm around your opponent’s neck, lock your hands and drive the blade of your forearm up and back into their throat. Throat specialists class it as an air choke, because the forearm presses the voice box back towards the spine (Singerman et al. 2026), but a tight guillotine squeezes the sides of the neck too. It’s hard on the throat, so tap early and let go the moment your partner taps.
What is a guillotine choke?
The guillotine is a front headlock choke. Your opponent’s head is under your armpit, your arm goes around their neck with the forearm under their throat, and your hands lock together. You can catch it standing when they shoot a takedown with their head low, from closed guard when they drop their head, or in a scramble. It doesn’t use the gi, so it works the same in no-gi and MMA. In Brazil it’s the guilhotina.
Most of the big chokes in jiu-jitsu are blood chokes, like the rear naked choke and the triangle. The guillotine is the odd one out: throat specialists group it with the Ezekiel as an air choke (Singerman et al. 2026).
How does a guillotine choke work?
The arm around the neck does two jobs at once. A 2026 review describes it as one arm wrapped around the neck while the other drives the pressure up and back across it (Hasegawa et al. 2026).
- The forearm presses the throat. The blade of your forearm sits under their throat and you pull up and back. That pushes the voice box (larynx) back towards the spine, which is why it’s classed as an air choke (Singerman et al. 2026). It hurts, and breathing gets hard.
- The arm squeezes the sides. Your arm also wraps the sides of the neck, where the carotid arteries run. Squeezing those is what cuts blood flow to the brain in any blood choke (Mitchell et al. 2012), and it’s what puts someone to sleep quickly.
- The throat pays more. In a survey of 160 BJJ and MMA athletes, the guillotine (40%) and the rear naked choke (34%) were the chokes most associated with throat symptoms such as a sore throat or pain when swallowing (Singerman et al. 2026).
The finish comes from your back and hips, not your biceps. Hands locked, elbow tight, you arch back and lift up through the throat.
Two episodes from our Anatomy Series. Episode 17 explains why blood chokes work in seconds while air chokes are slow, and why the video won’t put a number on air chokes. The finale asks what stops you choking a much bigger animal.
How do you do a guillotine choke?
The same five steps work standing and from closed guard. What changes is how you close the space in step 4.
- Step 1: Trap the head. When their head drops, from a takedown attempt or as they posture down in your guard, wrap it under your armpit.
- Step 2: Blade under the throat. Slide your forearm under their neck so the thumb side of your forearm, the blade, sits across the front of the throat, not on the jaw.
- Step 3: Lock your hands. Grip your choking hand with your other hand and keep your elbow tight to your side, so there’s no gap around the neck.
- Step 4: Close the space. From guard, close your legs around their body and pull them in so they can’t posture up. Standing, keep your hips tight to them.
- Step 5: Finish with your back and hips. Arch back and lift up and back through the throat. Squeeze steadily, and let go the moment they tap or go limp.
Common guillotine choke mistakes
- Forearm on the jaw. If your forearm is on their chin, you’re squeezing bone. Get the blade under the throat before you squeeze.
- Pulling with your arms alone. A biceps curl tires out fast. The finish comes from arching your back and lifting with your hips.
- Leaving space. If they can posture up or walk round to your side, the choke loosens. Close your guard, or keep your hips tight to them standing.
- Cranking the neck. Twisting or wrenching the head turns a choke into a neck crank, and that’s how training partners get hurt. Squeeze straight up and back, slowly.
The rear naked choke runs on the same idea from behind: a tight arm and a whole-body finish rather than arm strength.
What happens if you don’t tap to a guillotine?
You go to sleep, and your throat takes a beating on the way. Once the arm closes the sides of the neck, it works like any blood choke. Across 81 chokes in real fights, people went unconscious about 9 seconds on average once the choke was fully locked (95% confidence interval 8.3 to 9.9 seconds; Stellpflug et al. 2020). That study covers chokes in general, not guillotines alone.
The air part is where the damage shows. In a survey of 160 BJJ and MMA athletes, 88% reported throat symptoms after chokes, most often a sore throat (79%) or pain when swallowing (66%), and 15% reported a permanent voice change. Only 18 saw a doctor, and 8 of them were diagnosed with a fracture of the voice box or the hyoid bone above it (Singerman et al. 2026). People were recruited online and chose to answer, so treat the numbers as a rough picture.
Serious injuries are rare, but they happen. One case series described 10 injuries from grappling chokes, including 5 carotid and 3 vertebral artery dissections, tears in the wall of a neck artery (Stellpflug et al. 2022).
How to train the guillotine safely
- Tap early. Tap when you feel the choke lock, not when you feel yourself going.
- Let go on the tap. Release straight away when your partner taps, or if they go limp or stop responding.
- Train under a qualified coach. Learn and drill chokes in a class, never as a game or a dare.
- Get checked if something’s wrong. Seek medical care if you have neck pain, a headache, changes in your vision or speech, or a voice change or pain when swallowing that doesn’t settle after a choke.
Does your guillotine land on everyone, or only on beginners?
Finishing a white belt and finishing a resisting blue belt are different results. JitsAI scores each technique against a nine-level ladder by partner size and experience, so you know who your guillotine really works on.
- One Focus a week, with pinned lessons from Henrique Rezende’s 74-lesson fundamentals course.
- A nine-level ladder for every technique, from partners less experienced than you to more experienced ones, each split lighter, same weight and heavier.
- Land it once and it’s a hit; 3 wins across 2 sessions and it’s proven.
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Video transcripts
Transcript: What happens if you don’t tap to a guillotine
What happens if you don't tap to a guillotine? You go to sleep, and your voice box gets pinned to your spine on the way. They wrap your head, lock their hands, and put the blade of their forearm under your throat. Then they pull up and back into your neck. Under that blade, your voice box. A cartilage box holding your vocal cords. It gets pressed into your spine like a nut in a nutcracker. So throat doctors call it an air choke. But your windpipes ringed with cartilage, built to stay open. The arm squeezes the sides too. The drainpipes shut first, then the brain's fuel lines. Fully locked? About nine seconds to lights out, on average. The blood puts you to sleep. The air part hurts your throat. In one survey, the guillotine topped the list for throat trouble. Think you can hold out? You still go out. Your throat just pays more. Tap early. Train tomorrow.
Transcript: Blood vs air chokes
Why do blood chokes work fast and air chokes slow? A blood choke squeezes the sides of the neck where the arteries feed the brain. An air choke presses on the windpipe at the front. In one study, experts reviewed 81 chokes on fully resisting, highly trained fighters. Once the choke was locked in, they went unconscious in about 9 seconds on average. Older judo lab studies found similar times. Air is different. Block the windpipe and the oxygen already in your lungs and blood keeps your brain going longer. We couldn't find a good study timing air chokes, so we won't give you a number. Your brain needs a steady blood supply. Cut the supply and it seconds. Cut the air and the tank empties more slowly. Train under supervision. Tap early and let go the moment they tap. Next up, can small beat big?
Transcript: What’s the biggest animal you could choke?
What's the biggest animal you could choke? This is a pure thought experiment. Please don't try it on anything. A blood choke squeezes the arteries in the neck, like we saw in episode 17. So does a bigger animal have much higher blood pressure to push back? One 2014 study said yes, a little. About 93 in a mouse, up to about 156 in an elephant. Other scientists say the data can't tell. So pressure probably isn't what stops you. Reach is. Your arms have to close around the neck, and at some point, a neck is just too big. We couldn't find good measured neck sizes across animals, so we won't pretend to give you a ranking. Honest answer? Nobody knows the exact limit. That's the series. Twenty episodes of Leavers, Frames, Grips and Chokes. Follow for season two.
Guillotine choke questions
Is the guillotine a blood choke or an air choke?
Both, depending on where the pressure lands. Throat specialists class it as an air choke because the forearm pushes the voice box back towards the spine (Singerman et al. 2026). A tight guillotine also squeezes the sides of the neck, and that blood-choke part is what puts someone to sleep quickly.
How long does a guillotine take to put someone out?
The best figure is for chokes in general: about 9 seconds on average once fully locked, across 81 chokes in real fights (Stellpflug et al. 2020). We couldn’t find a time measured for the guillotine on its own, so we won’t give one.
Why does my guillotine only hurt and not finish?
Usually your forearm is on the jaw, or there’s space between you. Get the blade under the throat, lock your hands, close the space and finish with your back and hips, not your biceps.
Is the guillotine hard on the throat?
It can be. In a survey of 160 grapplers, it was the choke most associated with throat symptoms, named by 40% (Singerman et al. 2026). Squeeze slowly in training, tap early, and see a doctor about a voice change or pain when swallowing that doesn’t settle.
Is the guillotine legal for kids in IBJJF competition?
The frontal guillotine is on the IBJJF’s illegal-moves table for the 4 to 12 and 13 to 15 age groups. It isn’t banned for 16 and 17 year olds or adults (IBJJF Rule Book v6, 2024).
Does the guillotine work in no-gi?
Yes. It doesn’t use the clothing, so it works the same in the gi, in no-gi and in MMA.
Sources
- Singerman et al. (2026), Laryngopharyngeal trauma in grappling martial arts, OTO Open 10(2): e70256. Classes the guillotine and Ezekiel as air chokes (larynx pressed against the spine). Survey of 160 BJJ/MMA athletes: 88% had throat symptoms after chokes (sore throat 79%, painful swallowing 66%), 15% a permanent voice change; 18 sought care, 8 of them had a hyolaryngeal fracture; the guillotine (40%) and rear naked choke (34%) were most associated with symptoms.
- Hasegawa et al. (2026), Common grappling submissions, Hawaiʻi Journal of Health & Social Welfare 85(6): 132–141. The guillotine: one arm around the neck, the other driving the pressure up and back across it.
- Stellpflug et al. (2020), International Journal of Performance Analysis in Sport 20(4): 720–728. About 9 seconds on average to unconsciousness once a choke was fully locked, across 81 choke sequences in real fights (95% CI 8.3–9.9 s). Chokes in general, not one technique.
- Mitchell et al. (2012), Journal of Applied Physiology 112(3): 396–402; Nimura et al. (2022), review. Compressing the carotid arteries cuts blood flow to the brain; the carotid-sinus reflex is not the main cause of unconsciousness.
- Stellpflug et al. (2022), Journal of Emergency Medicine 63(1). A case series of 10 injuries from grappling chokes, including 5 carotid and 3 vertebral artery dissections.
- IBJJF Rule Book v6 (June 2024), Technical fouls: illegal moves table, p. 29. “Frontal guillotine choke” is illegal for ages 4–12 and 13–15 only.
This page explains a sport technique. It isn’t medical advice.