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Analysis● Intermediate10 min read

Range builder: Constructing simple ranges and testing them

Building your own ranges teaches you hand value. Learn the process and tools for creating preflop ranges.

Building your own ranges is a fundamental skill. Range builders help you visualize and refine your preflop strategy.

What Is a Range Builder?

A range builder is a tool that lets you select which hands you play from each position. It creates a visual grid showing your opening, calling, and 3-betting ranges.

Why Build Your Own Ranges?

Memorizing someone else’s ranges doesn’t teach you why those hands are included. Building your own forces you to think about hand value.

The Building Process

Start with a tight range from each position. Add hands gradually based on logic: suited connectors for implied odds, broadway hands for equity.

Testing Your Ranges

Play 1,000+ hands with your ranges. Track results by position. Adjust hands that consistently lose money.

Tools for Range Building

Equilab (free), Flopzilla, or GTO solvers for advanced players.

Common Range Mistakes

Playing too many offsuit hands from early position

Not adjusting ranges based on table dynamics

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Range builder: visual grid showing which hands to open, call, and 3-bet from each position.
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Key Takeaways

  • 1Build your own ranges to understand hand value, not just memorize charts.
  • 2Start tight, add hands gradually based on logic. Test over 1,000+ hands.
  • 3Free tools: Equilab. Advanced: Flopzilla, GTO solvers.
18+ only

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