The Knee Slice Pass — Full Mechanical Breakdown
The knee slice is the modern competition standard for passing spider and closed guards. It creates angle where pressure passes create resistance, and it chains directly into side control or mount. Executed correctly, it is one of the highest-percentage passes at every belt level.
Mechanical Breakdown
Step 1 — Establish the Cross-Face
Control opponent's far-side collar with your lead hand, palm down, fingers directed toward their opposite shoulder. The grip should be deep — at least 3 fingers inside the collar fabric at the sternum notch. This grip is your leverage point for the entire pass. Without a firm cross-face, opponent can simply walk backward and reset their guard.
Step 2 — Post Your Base Hand
Place your non-collar hand on the mat near opponent's far hip, forearm perpendicular to their torso. This hand is your base — it prevents opponent from walking you forward and gives you the pivot point for the cut. The post should be firm but not stiff; you are not pushing, you are posting.
Step 3 — Cut the Angle
Shift your hips laterally across opponent's body. Your knee threads through the guard — not over it. The knee stays low and outside their thigh. The movement is a lateral step, not a forward penetration. You are cutting the angle, not charging through.
Step 4 — Clear the Legs
As you cut, use your posted forearm to fold opponent's near leg across their body. The fold is created by your forearm driving across their thigh while your body weight shifts laterally. Their legs separate and the guard opens as a consequence of the angle cut, not as a separate action.
Step 5 — Finish to Side Control
Step over opponent's near leg, collapse onto your forearm, and establish a low cross-face with your shoulder. You are now in side control — not high mount, not knee-on-belly, but low side control with a cross-face applied. This is the stable finishing position.
Common Mistakes That Kill the Knee Slice
Knee goes over the guard instead of through it. When your knee goes over the top of their thighs, you are climbing their body rather than cutting around it. The knee must stay outside their leg, threading through the space, not over the obstacle.
Cross-face is too shallow. A shallow collar grip slips when you shift your weight. Re-drill grip depth daily until 3-finger depth is automatic.
Forward pressure instead of lateral cut. If your first movement is forward, opponent walks you in a circle. The cut is lateral first, forward second.
Chain Drill: Knee Slice Progression
Week 1–2: Slow-Touch Drill
Partner sits in closed guard. You execute the knee slice at conversational pace — no resistance, full attention on mechanics. Focus on the cross-face grip depth and the lateral hip cut. 3×10 each side daily.
Week 2–3: Resistance Build-Up
Partner applies light collar grip resistance. You cut the angle and complete the pass. Partner can base but not actively recover guard. 5×5 each side. By end of week 3, target 8/10 clean completions.
Week 3–4: Live Positional Sparring
Start each sparring session from opponent's closed guard. Your only goal is to complete the knee slice. Do not chase submissions. Do not pass by other means. Complete the knee slice and reset. 5 minutes per session.
Week 4+: Live Pass with Counters
Partner starts in closed guard and may actively recover guard or submit you if you are slow. You must complete the knee slice within 20 seconds or reset to guard. This builds the speed and precision required for competition.
Chain Transitions from Knee Slice
If opponent defends by turning away toward their side: leg drag — release the cross-face grip, grab the far-side thigh, and drag them flat.
If opponent recovers to their knees: go to knee-on-belly — step over their body, establish knee-on-belly, and stabilize before transitioning to side control or mount.
If opponent sprawls and kills your angle: switch to double underhook — re-establish your base, run them to their back, and chain into a double underhook pass.
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