As the attacker executing the Underhook Sweep from Pocket Half Guard, your objective is to convert your deep underhook control and pocket space into a powerful come-up sweep that lands you in side control top. The sweep relies on three integrated mechanics: underhook pulling power that controls the opponent’s upper body, hip drive that generates forward momentum, and leg leverage from the half guard lock that prevents the opponent from basing out. The critical insight is that this sweep works with the opponent’s pressure rather than against it - their forward weight commitment becomes the energy that powers the reversal. Your job is to time the come-up when the opponent’s base is compromised, maintain underhook depth throughout the transition, and drive through to completion rather than stalling in intermediate positions.
From Position: Pocket Half Guard (Bottom)
Key Attacking Principles
- Underhook depth determines sweep power - the deeper the grip across their back, the more control you have over their upper body rotation during the come-up
- The come-up must be explosive and committed - hesitation allows the opponent to re-establish base and sprawl their hips back to kill the sweep
- Use opponent’s forward pressure as fuel - time the sweep when they drive into you rather than fighting against their weight
- Maintain pocket leg frame throughout the come-up to prevent the opponent from advancing position during the transition
- Head position drives the body - keep your head tight to their ribcage on the underhook side to reinforce the driving direction
- Complete the sweep fully to side control - stopping in dogfight or on your knees without securing top position wastes the sweep’s momentum
Prerequisites
- Deep underhook secured on opponent’s far side with hand gripping their far lat, armpit, or belt line - shallow underhook on the near shoulder is insufficient
- Bottom leg actively framing against opponent’s near hip with enough pocket space to generate the come-up angle
- Half guard leg lock retained with opponent’s leg trapped, preventing them from stepping over or posting wide
- Head positioned tight on the underhook side against opponent’s ribcage, reinforcing the underhook and preventing crossface
- Free arm (non-underhook side) available to post on the mat as a base for the initial rise to elbow and then to hand
Execution Steps
- Verify underhook depth and grip: Before initiating the sweep, confirm your underhook reaches deep across the opponent’s back with your hand gripping their far lat or belt. If the grip is shallow, re-swim the underhook deeper before proceeding. A shallow underhook will collapse under pressure during the come-up and result in a failed sweep or worse position.
- Create the come-up angle with a slight hip escape: Shrimp your hips slightly away from the opponent to create the angle needed for the come-up. This small hip escape generates the space to rise to your elbow without being blocked by the opponent’s chest weight. The angle should be roughly 30-45 degrees relative to the opponent’s body line.
- Rise to the posting elbow: On the free arm side (opposite the underhook), rise up onto your elbow while simultaneously pulling with the underhook to load the opponent’s weight over their trapped leg. This posting elbow is the first stage of the come-up and must be stable enough to support the transition to hand posting. Keep your bottom leg frame active to prevent flattening.
- Transition from elbow to hand post: Replace the elbow post with a hand post, raising your torso higher while pulling aggressively with the underhook. The opponent’s upper body should now be tilting over their base due to the combined pulling force and your rising angle. Your hips should be moving forward underneath you as you build toward the kneeling position.
- Drive to knees with explosive hip thrust: This is the critical power phase. Explode your hips forward while driving off your posting hand and pulling with the underhook. Your goal is to get both knees under you while driving the opponent backward over their trapped leg. The explosion must be committed and powerful - half-hearted attempts stall in dogfight. Drive your shoulder into their chest as you rise.
- Drive through the opponent’s base: Continue forward pressure with your chest and underhook as you come to your knees. The opponent should be tipping backward at this point. Use your forward momentum to drive through their compromised base, angling slightly toward the trapped leg side to maximize the toppling leverage. Do not allow them to post with their free hand by maintaining chest-to-chest connection.
- Complete the sweep and land in top position: As the opponent falls onto their back, follow them down while maintaining underhook control. Release the half guard leg lock and immediately begin establishing side control position. Your chest should land perpendicular across their torso with your hips heavy on the mat beside them.
- Consolidate side control: Immediately after completing the sweep, transition the underhook to a crossface or head control position. Establish hip-to-hip contact, flatten the opponent, and secure dominant side control. Do not celebrate the sweep prematurely - the position is not secured until you have established control points that prevent the opponent from recovering guard.
Possible Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | Side Control | 43% |
| Failure | Pocket Half Guard | 35% |
| Counter | Side Control | 22% |
Opponent Counters
- Opponent sprawls hips back and drops weight to kill the come-up (Effectiveness: High) - Your Response: If you feel the sprawl early, immediately switch to a deep half guard entry by scooting your hips underneath them. Their sprawl creates the space needed for the deep half transition. Alternatively, if already partially up, convert to dogfight position and attack from there. → Leads to Pocket Half Guard
- Opponent establishes a whizzer (overhook) on the underhook arm to neutralize leverage (Effectiveness: High) - Your Response: If the whizzer is shallow, continue the sweep with additional hip drive as the whizzer alone cannot stop committed forward pressure. If the whizzer is deep, abandon the direct sweep and transition to a limp arm escape to recover the underhook, or use the whizzer pressure to set up a back take by circling behind them. → Leads to Pocket Half Guard
- Opponent posts with their far arm and widens base to resist the topple (Effectiveness: Medium) - Your Response: Target the posting arm with a grip break or redirect. You can use your free hand to chop their posting arm while driving through with the underhook. Alternatively, change the angle of your drive to attack the side where they cannot post, or convert to a roll-through variation that takes them over your body instead of directly backward. → Leads to Pocket Half Guard
- Opponent crossfaces aggressively while stripping the underhook to flatten and pass (Effectiveness: High) - Your Response: If the crossface is being established during your come-up attempt, you must abort and defend the pass. Use your free hand to frame against the crossface while retreating your hips back to reestablish pocket half guard. If flattened, transition to knee shield or butterfly guard recovery rather than fighting from a compromised pocket half. → Leads to Side Control
Test Your Knowledge
Q1: What is the optimal timing window for initiating the underhook sweep from pocket half guard? A: The optimal timing is when the opponent commits their weight forward, either driving pressure to flatten you or attempting to strip your underhook. Their forward weight commitment shifts their center of gravity over their trapped leg, making them vulnerable to the come-up drive. Attempting the sweep when they are based back or have wide posture requires significantly more energy and has a much lower success rate.
Q2: What grip depth on the underhook is required before attempting the sweep? A: The underhook must reach completely across the opponent’s back with your hand gripping their far lat, far armpit, or belt line. A grip that only reaches their near shoulder or mid-back provides insufficient leverage to control their upper body rotation during the come-up. If you cannot achieve this depth, you should re-swim the underhook deeper or transition to an alternative attack rather than attempting the sweep with a compromised grip.
Q3: Why is the hip escape angle critical before building to the posting elbow? A: The hip escape creates a 30-45 degree angle between your body and the opponent’s line of pressure. Without this angle, their chest weight pins you flat and prevents you from rising to the elbow. The shrimp movement creates space to insert your elbow underneath you and provides the initial rotational angle needed to build upward. Skipping this step is the most common reason the come-up stalls immediately.
Q4: Your opponent posts their far hand wide to prevent being swept - how do you adjust? A: You have three options: first, use your free hand to chop or block their posting arm while continuing the drive through; second, change the angle of your drive to attack the side opposite their post, forcing them to reposition; third, switch to the roll-through variation which takes them over your body instead of pushing them directly backward over the post. The key is recognizing the post early and adapting before your momentum is spent.
Q5: What is the most critical mechanical detail during the explosive hip thrust phase? A: The hip thrust must drive your hips forward underneath you while simultaneously pulling with the underhook and driving your shoulder into the opponent’s chest. All three forces must work in coordination: hips moving forward for power generation, underhook pulling their upper body toward your trapped leg side, and shoulder contact maintaining structural connection. If any of these three elements is missing, the sweep loses significant power and stalls.
Q6: What should you do if the sweep stalls and you arrive in dogfight position? A: If the sweep stalls in dogfight, do not try to force the original sweep direction. Instead, recognize that dogfight is a strong intermediate position and attack from there. Your underhook advantage in dogfight gives you access to the dogfight sweep, the back take by circling behind the opponent, and the option to re-pull to deep half guard. The worst response is retreating back to flat pocket half guard, as you surrender all the positional gains from the come-up.
Q7: How does the opponent’s whizzer counter affect your sweep mechanics and what is the correct response? A: A whizzer (overhook) on your underhook arm attempts to neutralize your pulling leverage by pinning your arm against your body and driving you back down. If the whizzer is shallow, you can power through it with committed hip drive since a shallow whizzer cannot overcome full-body momentum. If the whizzer is deep and established before your come-up, you should limp-arm to extract the underhook, or use the whizzer pressure to set up a back take by circling to the opposite side.
Q8: What chain attacks are available if the opponent successfully defends the underhook sweep? A: The primary chain attacks include: transitioning to the Old School Sweep by reaching behind their far leg when they base back to prevent your come-up; entering deep half guard by scooting your hips underneath when they sprawl; taking the back by circling behind them when they whizzer; and transitioning to dogfight sweep options when the come-up stalls midway. The pocket half guard system ensures that each defensive reaction to the underhook sweep exposes a different vulnerability.
Safety Considerations
This sweep involves explosive hip and shoulder rotation under load, creating potential strain on the lower back and shoulders. Ensure controlled execution during drilling phases, gradually increasing speed and resistance. The come-up phase places significant stress on the posting wrist and elbow, so practitioners with wrist or elbow injuries should modify to use a forearm post. The half guard leg lock can create knee torque on the trapped leg during the drive-through, so communicate with training partners about pressure levels. Always warm up the hips, lower back, and shoulders before drilling this technique at intensity.