Mounted Triangle

Quick Introduction

The mounted triangle is a triangle choke entered from the top of mount when the opponent extends an arm to defend (typically to push your hips, shrimp, or upa-escape). Capturing that committed arm lets the attacker swing one leg over the opponent's head and lock a figure-4 around the neck-and-arm — all while remaining on top.

It is a high-percentage finish at every level because:

• The escape that gives up the arm is one of the most common mount escapes
• Defenders rarely expect a triangle from above
• The finish is gravity-assisted (you're already on top)

Position Overview

From: Top Mount, high mount preferred | Finish: Triangle choke while attacker remains on top

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The Standard Mounted Triangle

1. You have top mount, ideally high mount (knees in their armpits)
2. Opponent reaches up to frame your chest or push your hip — they commit one arm
3. Trap the extended arm: pin it to the mat above their head, or hug it across your body
4. Walk the same-side knee (the knee on the side of the trapped arm) UP under their shoulder
5. With the opposite leg, swing your foot over their head and behind their neck
6. The arm and head are now both inside your legs — the triangle frame
7. Lock figure-4: top shin behind the bottom knee
8. Lean forward, drive shoulder into their chin — squeeze finishes from on top

Key detail: The setup hinges on isolating one arm. If both their arms are defending, the mounted triangle isn't on — switch to ezekiel, cross-collar, or armbar setups.

Setup From an Upa Escape Attempt

1. Mount, opponent attempts upa (bridge and roll)
2. As they bridge, their arm extends to grip your sleeve or shoulder
3. Pin the extended arm before they complete the upa
4. Walk same-side knee up
5. Swing leg over head, lock figure-4 — they end up on bottom triangled

Setup From an Elbow-Knee Escape

1. Mount, opponent shrimps and frames between you and their hip
2. Their framing arm is exposed
3. Capture that arm to your chest
4. Walk knee up, swing leg over — standard finish

Setup From High Mount (Arm-In Sequence)

1. High mount, opponent's arms are folded inside
2. Attack a head-and-arm choke or ezekiel — they bridge to escape
3. Their arm extends to the mat as they bridge
4. Capture, walk knee up, leg over — mounted triangle as the secondary attack

Finishing Options From Mounted Triangle

Once the figure-4 is locked, you have several finishes:

Finish	Cue
Squeeze (standard triangle)	Lean forward, drive shoulder into their chin
Roll to bottom triangle	If they upa hard, ride the roll into a classic triangle finish
Mounted armbar	Their captured arm is exposed — pull it across for an armbar
Bicep slicer	Use their trapped arm against their own bicep

The roll-to-bottom-triangle is a fallback if your top position is unsettled. The on-top finish is faster and lower-risk.

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Core Principles

1. Wait for the commitment — opponent must extend an arm; don't force it
2. High mount preferred — gives the angle needed to swing the leg over
3. Capture before kicking — the arm must be trapped before the leg goes over the head
4. Lock before leaning — figure-4 first, then squeeze pressure
5. Top finish is the goal — only roll to bottom if you have to

Common Mistakes

Mistake	Fix
Trying to throw leg over a defended arm	Wait for the escape attempt; let them give the arm
Knee not high enough	Walk the knee up under their shoulder before kicking the other leg over
Rolling backward immediately	Hold the on-top finish first; rolling is a fallback
Confusing it with a triangle from guard	Setup is from above; mechanics are the same once locked

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When to Look For It

• Mount with opponent in active defense (framing, shrimping, upa attempts)
• High mount where your knees are already up near their shoulders
• After threatening another mount attack (ezekiel, cross-collar) that forces a defensive arm extension
• Gi and no-gi (works in both, no grip dependency)

Next Steps

1. Triangle — The base technique; mastery of the regular triangle makes mounted easier
2. Top Mount — Position fundamentals; control before submission
3. Ezekiel — Paired mount attack that often opens the door to mounted triangle
4. Armbar — Alternative finish when their arm is captured the wrong way for a triangle