Deep Stack Cash Game Preflop Range Construction Guide

Position Scene Description

Deep-stack cash games typically refer to games where effective stacks exceed 200 big blinds (BB). Due to increased stack depth, postflop implied odds and potential payoffs become larger, requiring preflop hand selection to prioritize playability and position advantage.

Recommended Ranges (Text Description)

Below are typical preflop raising ranges for deep stacks (200BB) at a 9-handed table (without facing a 3-bet):

• UTG (Under the Gun): Raise only the strongest hands, about 12% of hands. Includes all pairs (22+), all suited connectors (54s+), all suited aces (A2s+), suited kings (K9s+), suited queens (QTs+), and AQo+, AKo.
• MP (Middle Position): Expand to about 18% of hands. Add all suited one-gappers (T8s+, 97s+, etc.), some offsuit connectors (JTo+), and weaker suited aces (A2s-A5s).
• CO (Cutoff): About 25% of hands. Raise all pairs, all suited aces, almost all suited connectors (54s+), one-gapped suited (86s+), some offsuit connectors (KTo+, QJo+), and weak suited kings (K8s-K9s).
• BTN (Button): About 35% of hands. Further relax to all suited hands (including two-gapped suited like J8s), all offsuit connectors (98o+), weak suited queens (Q8s+), and some weak suited kings (K7s-K9s).
• SB (Small Blind): Tighten up, about 15% of hands. Due to poor postflop position, avoid marginal hands. Recommended raising range similar to MP, but remove the weakest suited connectors and one-gappers.
• BB (Big Blind): When facing a raise, defending range should be wider, but own raising range should be similar to SB.

Range Construction Logic

In deep stacks, preflop hand selection should prioritize postflop pot potential. Specific logic:

1. Increased value of suited hands and connectors: Suited connectors (e.g., 76s) and one-gapped suited hands (e.g., T8s) are more likely to hit strong made hands or draws postflop in deep stacks, allowing for huge value on river all-ins.
2. Stable value of pairs: All pairs can be played, but small pairs rely mainly on set value in deep stacks; be mindful of controlling pots when overcards appear postflop.
3. Decreased value of high cards: Offsuit hands like QTo, JTo can easily fall into reverse implied odds traps in deep stacks because they may be dominated by stronger high cards postflop.
4. Position determines range width: Late positions can play more hands due to information advantage, while early positions need strict filtering.

Adjustment Factors

In actual play, dynamically adjust based on:

• Opponent style: Against tight-passive opponents, widen raising range and steal blinds frequently; against loose-aggressive opponents, tighten raising range and increase 4-bet frequency.
• Effective stack size: Above 300BB, further favor suited connectors and small pairs; around 100BB, moderately increase the proportion of high cards.
• Table dynamics: If the table frequently 3-bets, tighten opening range and expand 4-bet range (e.g., QQ+, AKs).
• Pot odds: When facing a raise, consider pot odds for BB defending range. For example, facing a 3BB raise, a defending frequency of about 28% is needed.

GTO Reference

Theoretically, GTO (Game Theory Optimal) preflop ranges in deep stacks tend to be more polarized:

• Raising range: Mainly composed of strong hands (big pairs, AK) and speculative hands (small pairs, suited connectors); intermediate hands (e.g., AJo, KQo) are reduced.
• Range balance: Ensure a reasonable ratio (about 2:1) of value hands to bluffs in opening ranges from different positions to avoid exploitation.
• Facing a 3-bet: In deep stacks, the 4-bet range should be narrower and primarily value hands (QQ+, AKs), while using some strong drawing hands (e.g., A5s) for 5-bet bluffs.

Note: Pure GTO ranges are complex and not equivalent to maximized profitability; combine with exploitative adjustments in practice.

Practical Application

Example (typical 200BB deep stack, 9-handed):

• Scenario: You are on the BTN, everyone folds to you, holding J9s.
  • Recommendation: Raise to 3BB. J9s is a one-gapped suited hand; in deep stacks, it can be played frequently and can hit many draws postflop.
• Scenario: You are in UTG, holding KJo.
  • Recommendation: Fold. KJo is a marginal hand from UTG, easily dominated postflop, lacks suited potential, not worth investing.
• Scenario: You are in CO, holding 22, effective stack 200BB, all before you fold.
  • Recommendation: Raise. Small pairs can cheaply see a flop and potentially win big pots when hitting a set.

In summary, the core of deep-stack cash game preflop strategy is: Enter pots with highly playable hands, avoid playing weak high cards that are easily outdrawn, and fully leverage positional advantages.