Flop Range Betting Frequency Table: GTO and Practical Adjustment Guide

Position Scenarios

Betting frequency on the flop varies by position. This section uses two common heads-up scenarios in 6-max (BTN vs SB) and (CO vs BB), assuming two extreme flop types: a dry board (e.g., K-7-2 rainbow) and a wet board (e.g., J-T-9 with a flush draw). The position advantage side (BTN, CO) holds post-flop initiative, while the defender (SB, BB) has a wider range and lacks position.

Recommended Range: BTN vs SB (Flop K-7-2 Rainbow)

• Continuation Bet Range (approx. 65% of hands): Top pair or better (top pair K, middle pair 7, bottom pair 2), overpairs, draws (backdoor flush draws can be considered semi-bluffs), and some air hands (e.g., Ace-high, Queen-high without draws) for balance. Specifically includes: AK, KQ, KJ, KTs, 77, 22, A7s, A2s, Q7s, J7s, T7s, 97s, 87s, 76s, 65s, 54s, AQo (partial), AJo (partial), etc.
• Check Range (approx. 35% of hands): Medium-strength but vulnerable hands (e.g., 99, TT, JJ), weak pairs (e.g., 33-66), and completely missed low connectors (e.g., T9o, 86o).

Range Construction Logic

GTO betting frequency depends on equity distribution and range advantage. On a K-7-2 rainbow flop, the preflop raiser (BTN) has about 25% top pair or better hands in their range, while the defender (SB) has only about 15%. Therefore, BTN can bet at a high frequency (approx. 65%), exploiting the opponent's check range with a range advantage. Bet sizing is typically 33%-50% of the pot; smaller sizes allow a wider range.

Adjustment Factors

• Opponent Tendencies: If the opponent check-folds too often, increase betting frequency to 75% or more; if the opponent calls frequently, reduce air bets and use more value hands.
• Board Texture: On wet boards (e.g., J-T-9 with flush draw), both sides have more draws, reducing the initial range advantage. Betting frequency should drop to about 50%, mixing more draws with made hands.
• Stack Depth: When effective stacks are below 30 BB, the range tends to polarize, lowering betting frequency (approx. 40%); above 100 BB, increase bluff proportion.

GTO Reference

In a standard GTO model, BTN's optimal betting frequency on a K-7-2 rainbow flop is around 60%-70%, with value hands (top pair+) comprising about 35% and bluffs (air + draws) about 65%. With a 33% pot bet sizing, the bluff proportion needs to be higher to maintain balance. Actual GTO solver solutions show that about 10% of BTN's continuation betting range consists of mixed strategy hands (part bet, part check), such as AJo and 99.

Practical Application

1. Establish a Baseline Frequency: Start with roughly 65% betting frequency in regular situations, then adjust based on the opponent.
2. Identify Opponent Errors: When an opponent check-raises too often, fold marginal hands; conversely, expand your betting range.
3. Dynamic Board Adjustments: Plan future streets' balance before the turn arrives. For example, bet a wider range on the flop, then tighten up on the turn based on board changes.
4. Practice Range Construction: Use software like Flopzilla or PioSOLVER to simulate different boards and generate your own frequency tables. Review them weekly.

Remember: Frequency is just a tool; the core is understanding the motivation behind each bet (value, bluff, protection).

FAQ

Q: Does flop betting frequency apply to all boards? A: No, board texture is the biggest variable. On dry boards (no straight draws, no flush draws), betting frequency can be as high as 70%, while on wet boards (e.g., two-tone straight draw boards), it should drop to 40%-50%.

Q: How do you balance value and bluff ratios? A: Refer to GTO ratios: value hands should make up about 40%-50% of the total betting range, with the rest being bluffs. The exact number depends on bet sizing; smaller sizes require more bluffs.

Q: Is high-frequency betting suitable for beginners? A: Beginners should avoid mechanical high-frequency betting. It is recommended to start at 50% and gradually adjust based on board and opponent to avoid significant losses.