A GTO Study Framework for RFI, 3-Bet, and 4-Bet
Short Answer
RFI decides which hands can enter first. 3-bet decides which hands pressure an opening range. 4-bet decides which hands continue against a 3-bet. These nodes cannot share the same range because opponent ranges and pot odds change.
RFI: First-In Range
RFI depends on position, players behind, and rake. Early positions need stronger ranges; late positions can steal more blinds. The goal is not to memorize every combo, but to know which hands are position-dependent and which remain strong everywhere.
3-Bet: Pressure And Value
A 3-bet range combines value hands and bluff candidates. In-position 3-bets can be more linear because position improves realization. Out-of-position 3-bets need more raw strength, blockers, and a clear postflop plan.
4-Bet: Compressed Continuation
After facing a 3-bet, the continuing range becomes much narrower. 4-bet value usually comes from premium pairs and strong aces. Bluff candidates often contain ace or king blockers. Calls need hands that realize equity in lower SPR pots.
Study Order
- Learn RFI by position.
- Then learn 3-bet and call responses against RFI.
- Finally learn how the opener continues after facing 3-bet.
- Handle stack depth and rake separately at every step.