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Stack Size and Hand Selection

By TPP Academy

STACK SIZES | LESSON 5

LISTEN TO : STACK SIZES | LESSON 5

Table of Contents

Your stack size changes which hands print EV. It changes pot geometry, which changes how often you reach turns and rivers with meaningful SPR.

Use stack depth to decide if you should build Linear vs. Polarized ranges, and which hands can actually realize their equity.

Online, this matters more because of Rake-drag, fast folds, and multi-tabling. You need clean, repeatable preflop rules.

  • Shallow, fewer streets, more all in pressure, higher value of high cards.
  • Deep, more streets, more leverage, higher value of hands that can make nutted hands.

Equity Realization (R) drives everything. If a hand cannot reach showdown or win big pots when it hits, it is a leak.

TPP Exploit Framework

  • The Exploit, tighten dominated offsuit opens and punish weak flats with aggressive 3-bets.
  • The Risk, over-tightening so much that you become Capped vs. Uncapped and face relentless pressure.
  • The Counter, reintroduce suited wheel aces and suited connectors as stacks deepen, and defend with correct Minimum Defense Frequency (MDF).

SPR and why deep stacks reward suited connectors

Stack depth maps directly to SPR. Higher SPR increases the payoff when you make strong, hidden hands.

Suited connectors win by making straights, flushes, and strong combo draws. Those hands scale with stack size because their best outcomes are nutty and they stack top pair.

Hands like 87s are not about raw preflop equity. They are about implied odds and leverage when ranges are wide and mistakes happen on later streets.

  • At 30bb to 60bb, you realize fewer turns and rivers. 87s loses its best feature, multi-street pressure.
  • At 100bb to 200bb, you can check raise, barrel turns, and overbet rivers. 87s can realize and even exceed its equity.
  • Deep stacks make reverse implied odds matter more. That hurts hands like KJo because top pair is not a stack-off hand.

Deep stacks also shift you toward more Polarized aggression. Your bluffs want equity and strong runouts. Suited connectors provide both.

TPP Exploit Framework

  • The Exploit, in deep online pools, attack players who overfold turns by using suited connectors as barrel candidates.
  • The Risk, over-bluffing on boards that smash BB defend ranges, you torch EV.
  • The Counter, tighten barreling on low and connected textures, and bring your frequencies back toward MDF based defense.

Linear opens get tighter when stacks are shallow

When stacks get shallow, you want hands that make top pair and can stack off comfortably. Your opening range becomes more Linear vs. Polarized ranges, specifically more linear and value dense.

Shallow stack pots punish calls that rely on implied odds. Set mining with 44 without the right price is pure hope poker.

In rake-heavy games, marginal suited hands lose even more because you do not get paid enough when you hit.

  • Raise more hands like AJo+, KQo, 99+.
  • Cut hands like 98s, 87s, and weak suited gappers that need deep stacks to realize.
  • Reduce flats versus 3-bets with hands that cannot continue versus jams.

Shallow stacks also compress postflop. That increases the value of card removal. Your 4-bets and jams like blockers. Use Blockers/Unblockers to choose those.

  • A5s-A2s block strong aces and keep playability when called.
  • KQo blocks premiums but plays poorly when deep, because it makes dominated one pair hands.

TPP Exploit Framework

  • The Exploit, versus shallow calling stations, value 3-bet more linearly and stop giving implied odds.
  • The Risk, you become face up and get 3-bet jammed on relentlessly.
  • The Counter, protect by mixing in suited blocker bluffs like A5s-A2s and defending correct MDF versus steals.

BTN or CO versus BB, deep stacks change the BB defend

In position, you realize equity better. Deep stacks amplify that gap. Your BTN opens can widen, and BB can also widen because implied odds go up.

The result is more complex postflop, more thin edges, and bigger punishment for range mistakes. This is where tracking software and population reads pay you.

Keep your preflop plan clean. Split hands by how they win.

  • Value, TT+, AQs+, AKo.
  • Playable, A9s-A2s, KTs+, QTs+, JTs.
  • Implied odds, 98s, 87s, 76s, 65s.
  • Dominated risk, KJo, QJo, ATo, these lose EV fast when deep if you play them passively.

If BB is weak postflop, your suited connectors become premium opens. You get paid when they overplay one pair and underdefend turns.

If BB is strong and aggressive, you still open suited connectors, but you tighten your continuation plan. Your Equity Realization (R) comes from pressure and position, not from hoping to hit.

TPP Exploit Framework

  • The Exploit, widen BTN opens with suited connectors and punish fit or fold BBs with turn barrels.
  • The Risk, widening too far and getting check raised off equity on boards that favor BB.
  • The Counter, tighten weak offsuit broadways, and keep a protected checking range so you are not Capped vs. Uncapped.

OOP deep is where dominated hands die

Out of position, your Equity Realization (R) drops. Deep stacks magnify that drop, because more money is available to lose when you make second best hands.

This is why hands like KJo and small pairs like 44 become problem hands from SB or UTG in tougher games.

You need ranges that can defend multiple streets without guessing.

  • From SB versus BTN, prefer 3-bet or fold. Flatting creates low R, high rake, and capped ranges.
  • Build more Polarized 3-bets deep, strong value plus suited connector and suited ace bluffs.
  • Play 44 as a pure fold versus large 3-bets unless stacks and sizing give real implied odds. Do not set mine by habit.

Capped vs. Uncapped becomes the fight. When you flat too many middling hands OOP, your range caps and the IP player overbets turns and rivers.

Use Blockers/Unblockers to select your OOP 3-bet bluffs. You want hands that block strong continues and unblock folds.

TPP Exploit Framework

  • The Exploit, versus IP players who over c-bet, check raise more with suited connectors that have equity and runout coverage.
  • The Risk, becoming too raise heavy and getting 3-bet jammed or called down correctly.
  • The Counter, protect with stronger check call ranges and maintain MDF on turns so you do not overfold to barrels.

3-bet pots, suited connectors as equity plus pressure

In 3-bet pots, ranges are tighter. Shallow stacks push you toward all in thresholds, deep stacks reopen multi-street lines.

Deep, suited connectors can be used as 3-bet bluffs because they retain equity when called and can attack capped calling ranges.

Shallow, the same hands suffer because your fold equity is lower and your implied odds disappear.

  • At 100bb plus, 3-bet hands like 87s more often in positions where you can leverage turns.
  • At 60bb or less, prefer A5s-A2s as bluffs, they have better blocker value versus 4-bets and jams.
  • When you call 3-bets with suited connectors, you must have a plan for check raises and turn barrels. No autopilot flats while multi-tabling.

TPP Exploit Framework

  • The Exploit, attack capped 3-bet callers with overbets and polar lines on favorable runouts.
  • The Risk, forcing polarization on static boards where their range can comfortably meet MDF.
  • The Counter, shift to smaller sizes and higher frequency betting when your range advantage is real, and reduce bluffs without equity.

Scenario Box

Hero Hand, 87

Flop, Q 9 6

Action, CO opens. BTN calls. Hero in BB calls. 150bb effective. Flop checks to BTN. BTN bets 33 percent. Hero check raises.

Deep stacks make this check raise credible. You represent two pair, straights, and strong draws. You also have equity when called.

At shallow stacks, this line collapses into jam or fold territory. Your opponent realizes their equity too easily, and your bluff leverage disappears.

Multi-way pots, suited connectors gain equity but lose fold equity

Multi-way is common in online pools at lower stakes and passive tables. Suited connectors gain raw equity because more players create more implied odds.

You still need discipline. Multi-way reduces fold equity and makes domination problems worse for offsuit broadways.

Deep multi-way pots reward hands that can make the nuts and apply pressure on turns when ranges narrow.

  • Prefer 98s, 87s, 76s over KJo in multi-way deep spots.
  • Avoid calling raises with 44 unless the sizing and stacks give a clear path to win a full stack when you hit.
  • Do not float multi-way with backdoors only. That is hope poker at scale, and tracking software will show the bleed.

TPP Exploit Framework

  • The Exploit, value bet thinner when opponents overcall and refuse to fold draws. Choose suited connectors that make nutty rivers.
  • The Risk, overvaluing non nut flushes and paying off in deep pots.
  • The Counter, tighten your river bluff catches, and choose Blockers/Unblockers that reduce their nut combos.

TPPKey Takeaway

Shallow stacks reward high card strength and Linear vs. Polarized ranges that can stack off. Deep stacks reward nut potential, leverage, and high Equity Realization (R).

  • Deep, prioritize 98s, 87s, 76s, and suited aces. They scale with implied odds and multi-street pressure.
  • Deep OOP, cut dominated one pair hands like KJo and avoid capped flatting strategies that invite overbets.
  • Shallow, reduce suited connector frequency, increase value density, and use Blockers/Unblockers for 4-bets and jams.
  • Play against pools, not theories. Use tracking software to find who overfolds turns, who overcalls rivers, and adjust while protecting MDF.

Let's Test Your Edge

Question 1: According to the article, why is stack depth described as a “preflop filter”?

Answer: Because it changes pot geometry and SPR, which changes which hands can print EV and realize their equity.

Explanation: The article ties stack size to how many meaningful streets you play and whether a hand can reach showdown or win big when it hits.

Question 2: What does the article say is the key driver behind which hands should be played across different stack depths?

Answer: Equity Realization (R).

Explanation: The article states that if a hand cannot reach showdown or win big pots when it hits, it becomes a leak—especially as stack depth changes.

Question 3: In the article’s framework, how should your opening range shift when stacks are shallow?

Answer: Become more linear and value dense, prioritizing hands that make top pair and can stack off comfortably.

Explanation: The article explains that shallow stacks reduce implied odds and compress postflop play, so marginal suited hands and set-mining without proper price become “hope poker.”

Question 4: What specific preflop adjustment does the article recommend from the SB versus BTN when stacks are deep and you’re out of position?

Answer: Prefer 3-bet or fold rather than flatting.

Explanation: The article says flatting OOP creates low equity realization, high rake, and capped ranges that invite pressure on later streets.

Question 5: In the scenario box (150bb), what is the main reason the article gives for why the BB check-raise is credible?

Answer: Deep stacks let you credibly represent strong value (two pair/straights) while also having equity when called.

Explanation: The article contrasts this with shallow stacks, where the line collapses into jam-or-fold and bluff leverage disappears.

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