Drill Your Tournament Ranges
Practice your preflop decisions against GTO-approximate ranges from Jonathan Little's Tournament Masterclass. Every hand builds better instincts.
This preflop range trainer drills the decisions that decide most of your win rate before the flop is ever dealt. Each hand drops you into a real spot — a position, a stack depth, and a scenario (open-raise, facing a raise, facing a 3-bet, squeeze, or push/fold) — and grades your choice against GTO-approximate ranges. It's a completely free preflop trainer that runs in your browser with no signup.
Work through every seat from UTG to the big blind and every stack depth from 75bb deep down to short-stack push/fold territory. Four difficulty levels scale from plain-English beginner explanations to a GTO-nerd mode with equity estimates, pot odds, and combo counts — so the same GTO preflop trainer works whether you're learning ranges for the first time or sharpening them for a final table.
New to the math behind the ranges? Read the study guide, browse the full preflop range charts, keep the push/fold chart handy for short stacks, and look up any unfamiliar term in the poker glossary. Prefer to read first? Browse the strategy articles.