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GTO Wizard's Range Builder: Mastering Preflop and Postflop Ranges
StrategyJanuary 31, 2026·1 min read

GTO Wizard's Range Builder: Mastering Preflop and Postflop Ranges


GTO Wizard's Range Builder is a powerful tool designed to enhance poker training by allowing users to set strategies for any preflop or postflop situation and compare them to Game Theory Optimal (GTO) strategies. This method is more effective and engaging than traditional training, helping users quickly identify blind spots and non-obvious leaks in their game.

To use Range Builder, start by selecting a specific solution and line you want to analyze. You can specify a particular board or board texture and set the difficulty level. The interface is flexible, allowing for simple choices between betting and checking or more complex decisions between different sizings.

Setting a strategy involves manually adjusting frequencies for any category of hands or combination, such as all flush draws or Q5s. The program then evaluates how close your strategy is to the optimal GTO strategy, providing a percentage score from 0 to 100%. It highlights which categories of hands are played farthest from the optimal strategy, allowing for detailed comparisons between specific combinations or entire ranges.

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Argus Riven

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Argus Riven

I've spent years at the tables — cash and tournaments — and just as long shaping poker copy behind the scenes: room reviews, bonus fine print, tournament notes. At PokerInsider I write the way I wish more sites would: clear structure, honest trade-offs, no hype. Whether you're new or already grinding, I care about what the offer actually costs you — rake, variance, and the fine print — and I treat responsible play as part of the job, not a footnote.

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