Mastering Poker Strategy: Adapting Your Gameplay Based on Stack Size

Most advice about stack sizes stops at “deep stacks play one way, short stacks play another.” That’s a good start, but real poker is more specific. Your stack interacts with where you’re sitting, how many players are at the table, and even how the money gets split at the end.

This guide focuses on those specific situations: playing each position at different stack sizes, defending your blinds, handling short-handed and heads-up play, and making smart decisions when a final table deal is on the table. We’ll use real hands and numbers from last week’s Triton Jeju final to show how it all works in practice.

Real-World Snapshot: One Final Table, Three Stack Lessons

The final event of Triton Jeju, the $150,000 10th Anniversary Special, finished on September 17. It drew 67 entries for a $10,050,000 prize pool, with 11 players paid, and it delivered three perfect examples of stack-based decision-making:

1. A 24-big-blind reshove. With the final table underway, Thomas Boivin three-bet with ace-jack after Miroslav Atanasov opened, and Joao Simao moved all in for 24 big blinds. Boivin called and ran into pocket aces. That’s a textbook medium-short stack play: shoving over a 3-bet to put maximum pressure on an opponent.

2. The less-than-one-big-blind comeback. After that hand, Boivin was left with just 15,000 chips, less than a single big blind, but doubled up several times to climb to 695,000 before finishing fifth for $783,000. A tiny stack can still turn into a real payday.

3. The heads-up deal. When heads-up play began, Simao led by more than 3 to 1 in chips, and the two agreed to an ICM chop with $80,000 left to play for. Simao locked up $2,517,090, Petrangelo secured $2,132,910, and Petrangelo then won the remaining money and the trophy for a total of $2,212,910.

We’ll come back to each of these below.

Part 1: Adapting Each Position to Your Stack Size

Your seat and your stack work together. The same stack should be played differently depending on where you are.

Early Position (UTG, UTG+1)

With many players still to act, you’re most likely to run into a strong hand.

• Deep stack: Open a tight range, but you can include some suited broadway hands and pairs for post-flop playability.
• Medium stack: Stay tight. Getting 3-bet from early position with a medium stack often forces awkward decisions.
• Short stack: Open-shoving from early position requires a strong hand, since so many players can wake up behind you.

Middle Position (Lojack, Hijack)

• Deep stack: Widen your range, especially with suited hands.
• Medium stack: A great spot for raising to pick up blinds, but be prepared to fold to aggression from late position.
• Short stack: Shoving ranges widen, but still respect the players left to act.

Late Position (Cutoff, Button)

This is where stack awareness pays off most.

• Deep stack: Play lots of hands. Position lets you control pots and outplay opponents after the flop.
• Medium stack: Your best stealing seat. Aggression here builds your stack steadily.
• Short stack: Your best shoving seat. Only the blinds (and maybe one more player) can call.

The Blinds

The blinds are unique, because you’ve already put money in. We’ll cover these in their own section next.

The pattern to remember: The later your position, the wider you can play at any stack size. The shorter your stack, the more that position advantage turns into shoving power rather than post-flop control.

Part 2: Blind Defense by Stack Size

Blind defense is one of the most overlooked stack skills. You’re getting a discount on your call because you’ve already paid part of it, and with big blind antes in play, pots are often larger too.

Defending the Big Blind

• Deep stack: Defend fairly wide against late position opens, since you’re getting a good price and have room to play after the flop. Be more careful out of position with weak offsuit hands.
• Medium stack: Mix calling with 3-betting. Against aggressive late position openers, re-raising can win the pot right away.
• Short stack: Reshoving becomes your main weapon. Against a button open, a wide range of hands can profitably go all in.

Defending the Small Blind

The small blind is the toughest seat in poker, since you’ll be out of position after the flop against everyone except the big blind.

• Deep stack: Many strong players prefer a 3-bet or fold approach here rather than calling, to avoid playing out of position in multi-way pots.
• Short stack: Shoving is often better than calling. Calling leaves you with an awkward stack after the flop.

Blind vs. Blind

When everyone folds to the small blind, stack sizes matter a lot:

• If the big blind is short, they’ll defend wide by shoving, so raise with hands that can call a shove.
• If you’re short in the small blind, shoving a wide range is usually strong, since only one player can call.

Part 3: Short-Handed Play (Six or Fewer Players)

When a table gets short-handed, the blinds come around faster, which puts more pressure on every stack.

What changes:

• You’re in the blinds more often, so blinds and antes eat your stack faster.
• Hand ranges widen for everyone. Hands that were folds at a full table become opens.
• Short stacks become even more dangerous, because they have to shove wider.

How to adapt:

• Deep stacks: Apply constant pressure. Opponents can’t wait for premium hands.
• Medium stacks: Use re-raises and reshoves, like Simao’s 24 BB shove over a 3-bet, to steal big pots without seeing a flop.
• Short stacks: Never give up. As Boivin showed, going from under 1 BB back into contention is possible with a few well-timed double-ups.

Part 4: Heads-Up Play

Heads-up is the most extreme version of stack adaptation. You’re in the blinds every single hand.

Key heads-up stack adjustments:

• Play very wide. Most hands are playable heads-up, especially on the button.
• Short stacks should shove often. With 15 BB or fewer, shoving a very wide range from the button is common.
• Big stacks should keep the pressure on, but avoid getting overly loose. A 3:1 lead can disappear in a couple of hands, as Petrangelo showed when he doubled twice and took a massive lead against Simao.

The lesson from Triton: A big chip lead heads-up is valuable, but it’s not a guarantee. That’s exactly why deals exist.

Part 5: Final Table Deal-Making

At many tournaments, especially at the final few players, a deal may be discussed. Understanding how stack sizes affect deals can be worth a lot of money.

The Two Main Types

Chip chop: Each player’s share of the remaining prize money is based on their share of the chips. If you have 75% of the chips, you get 75% of what’s left.

ICM chop: Uses the Independent Chip Model to account for the fact that the chip leader can still lose. Everyone is first guaranteed at least the lowest remaining prize, and the rest is divided based on each player’s chances of finishing in each position.

Why It Matters: The Triton Numbers

Let’s look at the Simao–Petrangelo deal. The total money left for the final two, including the $80,000 set aside, was $4,730,000. Here’s our approximate comparison:

Deal Type	Simao’s Share (Chip Leader, ~3:1)	Petrangelo’s Share
Chip chop (approximate)	About 75%, roughly $3.5 million	About 25%, roughly $1.2 million
ICM chop (actual)	$2,517,090 (about 53%)	$2,132,910 guaranteed (about 45%) plus the $80,000

The chip chop figures are our estimate based on the reported 3:1 ratio, since exact chip counts weren’t published.

What this tells us:

• Chip chops favor the chip leader. They give the big stack the full value of their chips.
• ICM chops favor the shorter stack. They reflect the fact that the short stack is guaranteed at least second-place money and still has a real chance to win.
• Always know both numbers before agreeing to anything. The difference here was well over $1 million.

Deal-Making Tips by Stack Size

• If you’re the chip leader: Push for a chip chop, or ask for extra money above the ICM figure.
• If you’re the short stack: ICM is usually your friend. Don’t accept a chip chop without understanding how much it costs you.
• If stacks are close: Both methods produce similar numbers, so a deal is often straightforward.
• Everyone: Deals must follow the tournament’s rules. Always involve the tournament director, and remember that some events don’t allow deals at all.

Part 6: A Quick Note on Pot-Limit Omaha

Stack size matters in Pot-Limit Omaha (PLO) too, but in a different way. Because bets are capped at the size of the pot, you can’t simply shove preflop when you’re short, and your stack-to-pot ratio shapes every hand.

• Deep stacks in PLO reward hands with strong drawing potential, like suited and connected cards.
• Shorter stacks in PLO favor high-card hands and strong pairs that can win without improving.
• Getting all the money in often takes several streets, so planning your bets matters more than in No-Limit.

PLO is getting plenty of attention at the top level. Triton’s upcoming North Cyprus Super High Roller Series in November includes a $100,000 PLO Main Event alongside its No-Limit events.

Quick Reference: Adapting Gameplay by Situation

Situation	Deep Stack	Short Stack
Early position	Tight, playable hands	Shove only strong hands
Late position	Play wide, use position	Shove wide
Big blind	Defend wide	Reshove more often
Small blind	3-bet or fold	Shove over calling
Short-handed	Apply pressure	Don’t give up, look for double-ups
Heads-up	Stay aggressive	Shove wide from the button
Deal time	Favor chip chop	Favor ICM

Final Thoughts

Adapting your gameplay to stack size goes far beyond deep versus short. Your stack changes how you play every seat, how you defend your blinds, how you handle short-handed and heads-up battles, and even how much money you walk away with when a deal is made.

The final table of Triton Jeju’s $150K event showed it all in one day: a well-timed 24-big-blind reshove, a comeback from less than one big blind, and a heads-up deal where understanding ICM was worth more than a million dollars. Put these lessons to work at your own tables, and you’ll make better decisions in every situation poker throws at you.