The Science of Filthy Triangles – In-Depth Review

Build a reliable triangle finish tree with crisp mechanics and smart variations.

The Bottom Line

You will learn how to secure and finish triangles from many positions. You will connect triangles to kimuras when angles fail. You will not get lost without first-principle cues.

⚡️ Quick facts

Best for: Triangle-focused guards

Skip if: You hate detail work

Tech focus: Triangle, Reverse Triangle, Kimura

Biggest takeaway: Finishes beat entries

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What You'll Learn

An eight-part deep dive into triangle mechanics, finishing tactics, and variations from guard, mount, and transitional positions. Melanson has long been associated with triangle excellence and teaches a clear conceptual framework (e.g., head control and Melanson’s Law) before branching into setups.

Primary Techniques You'll Drill

  • Triangle
  • Reverse Triangle
  • Overhook Triangle
  • K Guard Entries
  • Kimura Link

Format & Level

  • Instructional style: System Based, Conceptual
  • Skill level: All Levels
  • Format: No-Gi
  • Runtime: 5 hours and 55 minutes
  • Volumes: 8

Should You Buy It?

Wait for daily deal. I saw triangle finishing jump when I prioritized head control and leg pinching as taught.

Why Neil Melanson?

Known for triangle expertise; Melanson authored a book on triangle chokes and teaches blended catch and BJJ finishing.

Community feedback

Here’s a summary of common feedback from platforms like Reddit’s r/bjj.

😍 Why People Love It

  • Any triangle content from Melanson tends to be excellent.
  • Lanky players report strong carryover to their existing games.
  • Strong emphasis on finishing mechanics, not just entries.

🤔 Common Criticisms

  • Some find the chains long and detail heavy.
  • Presentation is less tidy than other highly produced brands.
  • A few prefer simpler triangle curricula.

Smart Alternatives

  • The Irish Collar – Adds collar-based triangles and kimuras that mesh cleanly. (Price: $127.00, 6 vols)
  • The Filthy Kimura – Great complement when triangles force shoulder locks. (Price: $79.00, 4 vols)

Sources & References

Official listing: View The Science of Filthy Triangles on BJJ Fanatics

Additional References

Your next step

You have the breakdown, community feedback, and my final thoughts. Now it’s your move.

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