2026 GTO Poker Strategy Cheatsheet: Core Preflop & Postflop Rules | Poker Judge
Master GTO poker in 2026! Complete cheatsheet for preflop opening ranges, 3-bet frequencies, postflop C-bet sizing, pot odds formulas, and MDF charts with free PDF download.
2026 GTO Poker Strategy Cheatsheet: Core Preflop & Postflop Rules
Master GTO poker in 2026! Complete cheatsheet for preflop opening ranges, 3-bet frequencies, postflop C-bet sizing, pot odds formulas, and MDF charts with free PDF download.
1. 6-Max 100BB Preflop Opening & 3-Bet Frequencies
| Position | Open Frequency | Key Hands | 3-Bet Frequency |
|---|---|---|---|
| UTG | 14% – 16% | 77+, ATs+, KTs+, QJs, A5s, AJo+, KQo | — |
| MP | 18% – 21% | 55+, A8s+, K9s+, QTs+, JTs, T9s, ATo+, KJo+ | 5.5% – 7.5% |
| CO | 26% – 29% | 22+, A2s+, K6s+, Q8s+, J8s+, T8s+, 87s+, A8o+, KTo+, QJo | 7.5% – 9.5% |
| BTN | 42% – 48% | 22+, Any suited Ax/Kx, Q2s+, J4s+, 85s+, Any broadway, A2o+ | 10% – 13% |
| SB | 38% – 44% | Steal wide vs folds; 3-bet polar vs early raises | 11% – 14% |
| BB | Defend 45%–60% | High pot odds defend; linear/polar 3-bet mix | 9% – 12% |
2. Postflop Continuation Betting (C-Bet) Sizing Rules
Small sizing (25%-33% pot) is preferred on dry boards (e.g. A-7-2r, K-8-3r) and high card textures where range advantage is dominant. Large sizing (66%-120% pot) is used on wet and dynamic textures (e.g. 9-8-7ss, J-T-9) where nut advantage and protection are critical.
3. Core Poker Math Formulas Cheatsheet
- Rule of 2 and 4: Flop Equity ≈ Outs × 4; Turn Equity ≈ Outs × 2
- Pot Odds: Required Equity = Call / (Pot + Bet + Call)
- Minimum Defense Frequency (MDF): MDF = Pot / (Pot + Bet)
- Break-Even Fold Equity: Fold Equity = Risk / (Risk + Reward)