Position Scenario Explanation

The preflop aggressor (e.g., BTN raises, BB calls) has range advantage and position advantage on the flop. However, different flop structures significantly alter the optimal betting frequency. Below, using the most common BTN vs BB heads-up pot, we analyze the difference in betting frequency between dry and wet flops.

Recommended Ranges

• Dry flop (e.g., K♠7♦2♣): Aggressive continuation betting, betting about 60-70% of the range. Value bets include top pair or better (AK, KQ, KK, etc.); semi-bluffs include backdoor draws, low-to-middle pairs (e.g., 87s), and some complete air (e.g., ATo).
• Wet flop (e.g., J♠T♠9♥): Reduce frequency to 40-50%. Value bets focus on very strong made hands (straights, trips, top two pair); semi-bluffs choose combo draws (e.g., Q♠8♠) and high pairs with backdoor draws; most medium-strength hands (e.g., one pair) check to defend.

Range Construction Logic

The betting range is determined by the ratio of "value hands" to "bluff hands." Value hands must be able to withstand a raise, while bluff hands need improvement potential. On dry boards, the aggressor has more super-strong made hands, and the opponent's defending range is weak, so a large portion of the range can bet to force the opponent to fold weak hands. On wet boards, the defender has many draws, and the aggressor needs to protect their value hands while avoiding being bluff-raised, thus narrowing the betting range and retaining a wider checking range.

Adjustment Factors

• Opponent Tendency: Against tight-passive players, increase overall betting frequency; against calling stations, reduce bluffs and increase value bets.
• Stack Depth: When effective stacks are shallow (<30BB), betting frequency tends to be more linear (more value bets); deep stacks increase the bluff proportion.
• Dynamic History: If previous frequent betting has been countered by the opponent, temporarily lower frequency or increase bet sizing.
• Bet Size: Small bets (33% pot) can support higher frequency; large bets (66-75% pot) require lower frequency to maintain range balance.

GTO Reference

In the GTO framework, the continuation betting frequency on dry flops is typically 60-70%, with smaller bet sizes (about 1/3 pot). On wet flops, the frequency drops to 40-50%, and the sizing should not be too small (about 1/2 pot). For example, on a K-7-2 rainbow board, the GTO c-bet frequency for BTN vs BB is around 68%; on a 9-8-7 two-tone board, it is around 46%. These numbers adjust slightly with specific board textures, but the trend is stable.

Practical Application

• Quick Judgment: First check whether the flop has obvious connectivity. If the three cards are unrelated (e.g., A-6-2), it's dry and you can bet aggressively; if two cards are suited and connected (e.g., Q♠J♠5♦), it's wet and you should be cautious.
• Facing a Raise: If you bet on a wet board and get raised, you can fold marginal hands, but still call or re-raise with strong draws.
• Example: Holding A♣J♣ on the BTN, BB calls. Flop K♥7♦2♠: bet about 70% of the time (can be small). Flop 9♠8♠3♥: bet only about 50%, prioritizing combos with backdoor flush potential.