Complete Guide to Texas Hold'em GTO Preflop Strategy [2026 Edition] with High-Resolution Range Charts

How many times have you hesitated with AJ in the UTG position? How many times have you watched your opponent effortlessly take the blinds while you were still undecided about whether to raise?

A harsh truth: In No-Limit Hold'em, the expected value (EV) contribution from the preflop stage accounts for 40%-60% of your overall winnings and losses. This means that if your preflop decision quality isn't up to par, no matter how well you play postflop, it's hard to make up for it.

When I first used a GTO range chart to play, I had KQs in the UTG position and raised decisively. Then a tight player behind me 3-Bet, and I folded in confusion—later I learned that KQs isn't even in the GTO range at UTG!

This article provides you with a complete guide to Texas Hold'em GTO preflop strategy. We won't just show you the optimal opening ranges for each position, but will also deeply explain the logic behind each strategy—so you can upgrade from "rote memorization" to "flexible application."

💡 Pro Tip: Don't try to memorize all ranges at once. Start with the positions you play most frequently, like the BTN's 50% range. Once you're familiar with that, gradually expand to other positions.

Whether you're an intermediate player who's mastered the basics but wants to break through a plateau, or an advanced player looking to systematically learn GTO strategy, this guide will be an important reference for your preflop skills.

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1. What is GTO? Why Must You Master It Preflop?

GTO Definition: Game Theory Applied to Poker

GTO (Game Theory Optimal) refers to: the optimal strategy that prevents you from being exploited in long-term play, even when you don't know your opponent's specific hand.

Nash Equilibrium is the theoretical foundation of GTO. Imagine this scenario: you and your opponent both use GTO strategy, then no matter how your opponent adjusts, you cannot gain more收益 by changing your own strategy—and vice versa. This is reaching the "equilibrium point" of the game.

📚 Authoritative Reference: Research from Upswing Lab shows that professional players' opening ranges highly correlate with GTO ranges, which is why GTO strategy has stood the test of long-term practical play.

Why is GTO Especially Important Preflop?

Preflop is the stage with the least information in Texas Hold'em. You can only see your two hole cards, while your opponent's hand is completely unknown. In this "information asymmetry" situation, GTO's "impartiality" becomes especially valuable:

1. With sufficient sample size, GTO is a "no-lose" choice

Professional players often play over 100,000 hands per year. At this scale, GTO strategy ensures you won't be systematically exploited by any opponent. Even if your opponent is better than you, using GTO preflop lets you "lose slower and win steadier."

2. Preflop is the foundation for building "range thinking"

Once you're accustomed to analyzing preflop decisions from a GTO perspective, you'll naturally build the concept of "ranges": What hands would I raise with in this position? What range might my opponent have? This way of thinking will run throughout your entire poker career.

3. When you play poorly postflop, good preflop can reduce losses

Even if you occasionally make mistakes postflop, a reasonable preflop range puts you in a relatively favorable position when entering the flop, reducing the cost of postflop mistakes.

GTO vs. Exploitative Strategy: Which Should I Choose?

As Phil Galfond shared on Run It Once, exploitative strategy needs to be built on a solid GTO foundation. The answer: Beginners should prioritize learning GTO; experienced players can then make targeted adjustments.

• GTO is suitable for: Facing unfamiliar opponents, opponents of similar skill level, online fast-paced tables
• Exploitative is suitable for: Facing opponents with obvious leaks, having sufficient table reading, having enough samples to know your opponent

In the second half of this article, we'll discuss in detail when you should stick to GTO and when you can safely "deviate from the track."

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2. Preflop Position Awareness: The Starting Point of All Strategy

Before diving into range charts, you must first understand the profound impact of position on Texas Hold'em preflop decisions. It can be said that position is a more important factor than hand strength in poker.

6-Max Table Position Breakdown

In a 6-max table, from UTG (Under the Gun) to BB (Big Blind):

Position	Abbreviation	Full English Name	Action Order	Position Characteristics
Under the Gun	UTG	Under the Gun	First to act	Earliest position, least information
Middle Position	MP	Middle Position	After UTG	Slightly better, but still needs caution
Hijack	HJ	Hijack	Before CO	Position advantage begins to show
Cutoff	CO	Cutoff	Before BTN	Very close to button position
Button	BTN	Button	Last to act	Best position, enjoys most information
Small Blind	SB	Small Blind	Second to act	One of the worst positions

Position vs. Hand Strength

Most people think AA is a "sure win," but from a GTO perspective, AA on deep stacks can actually be the hardest to play on certain flop textures—because your opponent's calling range often happens to be your weak point.

In the same hand, the quality of your position directly affects its actual value. Let's look at a classic example:

AK at UTG vs. AK at BTN

• At UTG: AK is strong, but you don't know what hands the players behind you have. Entering the flop, you might face a 3-Bet, causing you to give up or get into trouble.
• At BTN: You're the last to act and can observe everyone's actions. If all players before you fold, AK's value increases significantly—you can raise, and might even get value from a 4-Bet.

Position vs. EV (Expected Value)

Let the data speak: Professional player statistics show that the EV from the BTN position is often 3-4 times that of the UTG position. This isn't because they have better hands at BTN, but because:

1. More information (you can see more opponents' decisions)
2. More opportunities to steal blinds
3. Better control over pot size
4. Higher success rate for bluffs

Key Insight: In poker, there are no absolutely good cards, only good cards in the right position. Understanding this will upgrade your preflop decisions from "Can I play this hand?" to "Can I play this hand in this position?"

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3. GTO Opening Ranges Explained: Optimal Raise Tables for Each Position

Finally, we've arrived at the most anticipated section—GTO preflop opening range charts. I'll show you the optimal RFI (Raise First In) ranges for each position and explain the logic behind each strategy.

What is the Opening Range (RFI Range)?

The opening range refers to the hand combinations you use to raise when all players at the table have folded to you. RFI is the most important preflop action because:

• You have position advantage (nobody knows how you'll play after them)
• You have the chance to directly take the blinds (win without fighting)
• You have initiative (you can continuation bet postflop)

GTO Opening Ranges by Position (100BB Standard Depth)

UTG (Under the Gun): Raise 12-15%

As the first person to act, your "cost of trial and error" is highest—there are still 5 pairs of eyes watching you. So here, I only play the strongest 15% of hands.

Hand Type	Specific Hands	Notes
AA-TT	AA, KK, QQ, JJ, TT	Core pairs
AKs-AQs	AKs, AQs	Suited high Aces
AJs	AJs	Marginal suited Ace
AKo-AQo	AKo, AQo	Off-suit high Aces
AJo	AJo	Marginal off-suit Ace

💡 Personal Experience: I used to think AJo was very strong at UTG, until I got 3-Bet by someone with AA three times. Now I know, AJo at UTG is really just "looks beautiful but isn't."

UTG is the earliest position, and you need to play the tightest here. Only play the top 12-15% of the strongest hands. This is because:

1. There are 5 players behind you who might have strong hands
2. You need stronger hands to support your raise
3. When facing 3-Bets postflop, your range needs to be strong enough to continue

MP (Middle Position): Raise 18-22%

Includes all UTG range	Plus the following hands
-	99, 88, 77 (suited pairs)
-	T9s, 98s, 87s, 76s (suited connectors)
-	K9s, Q9s, J9s (AXs extension)

MP's range is about 30% looser than UTG. Because you still have 4 players behind you, but at least someone has folded ahead, reducing the probability of encountering super-strong hands.

HJ (Hijack): Raise 28-32%

Includes all MP range	Plus the following hands
-	65s, 54s, 43s (more suited connectors)
-	KJo, QJo (AXo extension)
-	KTs, QTs, JTs (Broadway cards)

HJ's positional advantage begins to show. You have 3 players behind you and can start playing some "speculative hands"—suited connectors and AXs have the potential to hit strong hands on the flop and get paid.

CO (Cutoff): Raise 40-45%

Includes all HJ range	Plus the following hands
-	22-66 all (almost all pairs)
-	54s, 43s, 32s (more speculative hands)
-	ATo, KTo, QTo, JTo (more AXo)
-	A9s, K8s, Q7s (suited one-gappers)

CO is only one seat away from the button and is the "golden position for blind stealing." Your opening range expands significantly because:

1. BTN and SB might fold
2. You have good postflop position
3. Even if called, you have the advantage postflop

BTN (Button): Raise 50-55%

Includes all CO range	Plus the following hands
-	A2s-A5s (all suited Aces)
-	A2o-A5o (off-suit small Aces)
-	T9o, 98o, 87o, 76o, 65o (any connectors)
-	J9o, T8o, 97o, 86o, 75o, 64o, 53o (any one-gappers)

BTN is the best position at the table, and your opening range can expand to over 50%. Here:

• Facing 3-Bets, you can fold weaker speculative hands
• Facing folds, you can directly take the blinds
• Postflop, you're always last to act

💡 Pro Tip: At BTN, as long as everyone ahead has folded, I raise with over half of my hands. The reason is simple: there are a lot of dead money, and I'll always act last postflop.

SB (Small Blind): Raise 35-40%

SB Special Considerations	Notes
Includes about 70% of BTN range	Need to subtract hands with low EV against BB calls
Reduce A2o, A3o, K2o-K5o	These hands aren't strong enough against BB's calling range
Reduce T9o, 98o	Connectors lose value without position
Keep all pairs, all AXs	Core value hands retained

SB Special Consideration: You're already the second person to act, and only BB might call behind you. Since BB has good pot odds (having already invested 0.5BB), you can't be as aggressive as at BTN.

How to Read GTO Range Charts

GTO range charts are typically represented as a 13×13 matrix (A-KQJ-T-9-8-7-6-5-4-3-2):

• Suited cells (above diagonal): Suited hands (e.g., AKs is A and K of the same suit)
• Off-suit cells (below diagonal): Off-suit hands (e.g., AKo is A and K of different suits)
• Diagonal: Pocket pairs (e.g., AA, KK)

Dark areas: Raise range Light areas: Fold or special handling

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4. 3-Bet Strategy: How to Use the Nuclear Weapon of Preflop?

3-Bet is the most powerful weapon in the preflop stage—it reclaims initiative while putting enormous pressure on your opponent. But overusing it puts you in trouble when called; being too conservative wastes positional advantage.

Two Types of 3-Bets

1. Value 3-Bet: Use strong hands to extract value

The goal of a value 3-Bet is to get opponents to call with weaker hands, thereby winning a larger pot when you have the goods. Typical value 3-Bet hands:

• AA, KK, QQ, JJ (super strong pairs)
• AK, AQ (strongest non-pairs)
• In late position: TT, 99, AJ, KQ

2. Bluff 3-Bet: Pretend to be strong with weak hands

Bluff 3-Bet uses the possibility of opponent folding to win directly. GTO strategy requires your 3-Bet range to include a certain proportion of bluff hands, otherwise you'll be easily exploited by opponents.

Typical bluff 3-Bet hands:

• In late position: JTs, QJs, KJs (medium suited connectors)
• Blockers: AKo, AQo (these hands reduce the probability of opponents holding super strong hands)

3-Bet Frequency Recommendations by Position

Position	vs. UTG Open	vs. MP Open	vs. HJ/CO Open	vs. BTN Open
UTG	-	6-8%	6-8%	5-7%
MP	6-8%	-	6-8%	5-7%
HJ	7-9%	6-8%	-	6-8%
CO	8-10%	7-9%	6-8%	-
BTN	8-10%	7-9%	7-9%	-
SB	10-12%	9-11%	8-10%	7-9%
BB	15-20%	12-15%	10-12%	8-10%

The Art of Cold 3-Bet

A cold 3-Bet is when you 3-Bet directly against someone's raise without having entered the pot yourself. This typically happens when a player opens and you 3-Bet from behind them.

Scenarios suitable for cold 3-Bet:

1. You have position advantage: Cold 3-Betting from BTN against CO open
2. Opponent has a wide opening range: Opponent opens 40%, you cold 3-Bet their weak range
3. Good postflop skills: After cold 3-Bet, you'll have position advantage postflop

Scenarios NOT suitable for cold 3-Bet:

1. Facing a tight player's narrow range
2. You're in SB position, in a passive situation
3. Stack depth is very deep (over 150BB), risk of blowing up postflop is high

Postflop Plans After 3-Bet

3-Bet is just the beginning of preflop; you also need to prepare for postflop:

3-Bet Hand Type	Postflop Strategy
Super strong (AA, KK)	Continuation bet on all flops, goal is to extract full value
Strong (QQ, AK)	Slow play on high cards, bet when hitting middle pair/draws
Medium (TT, AQ)	Continuation bet on dry boards, be cautious on dangerous boards
Bluff (suited connectors)	Turn into bluff when hitting strong hands, consider giving up when missing

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5. Calling and Cold Calling: Wisdom in Passive Positions

Calling is the most "passive" action preflop, but that doesn't mean it's unimportant. In fact, in some scenarios, calling's expected value (EV) may be higher than raising.

When Should You Call Instead of Raise?

1. Hand strength isn't enough for 3-Bet, but has potential

For example: You have 77 in MP position and face a raise from HJ.

• 3-Bet 77: Facing a strong range, your 77 is likely behind
• Call 77: Hit a set on the flop, win a big pot

2. Facing a loose player's wide range

If the raising player has a very wide opening range (e.g., opens 50% at BTN), calling with medium hands might be safer than 3-Betting—you get to see the flop cheaply and win if you hit.

3. Have position advantage and opponent makes mistakes postflop easily

After calling, you'll have position advantage postflop. If your opponent is a "rock" type player with poor postflop skills, you can take down the pot through continuation betting postflop.

Expected Value Calculation for Cold Calling

Cold calling is when you call while facing a raise and one or more callers. This is one of the most complex preflop decisions.

Factors affecting cold call EV:

Factor	Notes
Hand potential	Suited connectors, set potential
Position	More valuable at button than small blind
Opponent range width	The wider, the more favorable for cold calling
Stack depth	Deep stacks enhance hand potential
Pot odds	Whether the price to call is reasonable

GTO Cold Call Range Example (100BB, BTN vs. MP Open + CO/LJ Call)

Hands suitable for cold calling:

Hand Type	Specific Hands	Reason
Pocket pairs	77, 88, 99, TT	Set potential
Suited connectors	98s, 87s, 76s, 65s, 54s	Straight/flush potential
Suited one-gappers	T8s, 97s, 86s, 75s	Medium potential
AXs	AJs, ATs, A9s	Suited Ace potential
Blocking AK	AKo	Reduces opponent's super strong hand probability

Hands NOT recommended for cold calling:

Hand Type	Reason
Pocket pairs 22-66	Too weak unless special odds
Off-suit non-pairs (KQo, QJo)	Insufficient potential
Low suited connectors (32s, 43s)	Unless extremely good price

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6. Stack Depth and Table Type: Dynamic Adjustments to GTO Strategy

GTO range charts aren't static. Stack depth and table type significantly affect optimal strategy.

100BB Standard Depth (Baseline)

100BB is the most commonly used depth for GTO Solvers and the baseline for most poker strategy discussions. At this depth:

• The cost of preflop raising is moderate
• There's enough room to maneuver postflop
• Both 3-Bet and 4-Bet are reasonable weapons

Deep Stacks (150BB+): Balancing Aggression and Defense

When you have 150BB or deeper stacks, strategy changes significantly:

Strategy Adjustment	Changes
Opening range	Can be wider in late position; deep stacks make speculative hands more valuable
3-Bet frequency	Slightly lower, because postflop blow-up risk increases
4-Bet strategy	After 4-Bet, usually all-in, because postflop maneuvering room is too large
Slow play tendency	AA/KK more likely to slow play on dry boards

Key thinking for deep stacks: With deep stacks, your hand's potential is more important than absolute strength. AK is more fragile than 88 at deep stacks—because hitting an A or K postflop and running into a set costs too much.

Short Stacks (Below 50BB): Simple and Direct Strategy

Short stacks change the preflop math:

Strategy Adjustment	Changes
Opening range	Slightly tighter, because no postflop maneuvering room
3-Bet strategy	Tendency to go all-in post 3-Bet, because might get all-in postflop anyway
4-Bet strategy	4-Bet range becomes more polarized (only super strong hands and bluffs)
Fold equity required	Need higher success rate for bluffs

Key thinking for short stacks: At short stacks, continuation betting becomes less effective, because opponents can call to the river more easily. Your hand's absolute strength matters more than potential.

6-Max vs. 9-Max (Full Ring)

6-Max (6-handed):

• Position advantage is more pronounced (only 5 opponents)
• Opening range can be wider
• Currently the most popular game format

9-Max (Full Ring):

• More positions (7 players after UTG)
• Overall strategy needs to be tighter
• Early position EV decreases significantly
• More common in Chinese live games

Differences Between MTT (Tournament) and Cash

Dimension	Cash Game	MTT Tournament
Chip value	Fixed (1BB = $1)	Decreasing (late stage BB might only be worth $0.1)
Early stage	Standard GTO	Slightly tighter than Cash (avoid elimination)
Middle stage	-	ICM impact is huge, must consider rankings
Bubble period	-	Extremely tight, because elimination costs too much
Final table	-	Polarized strategy, short stack aggressive

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7. GTO vs. Exploitative Strategy: When to Stick to Theory, When to Adjust Flexibly?

This is one of the deepest debates in poker strategy. Let's analyze it from a dialectical perspective.

GTO Advantages

GTO's core advantages can be summarized in four points:

1. Systematic robustness: Against unknown opponents, GTO is a long-term non-losing choice
2. Not afraid of being exploited: Opponents can't beat you by adjusting
3. Reduces emotional decisions: Has standard answers to follow, reduces "playing by feel"
4. Faster improvement: Learning GTO is more efficient than fumbling for "experience"

Exploitative Advantages

1. Higher ceiling: Against opponents with leaks, exploitative strategy EV far exceeds GTO
2. Resource optimization: Don't waste good opportunities on balanced opponents
3. Psychological pressure: When opponents know you're exploiting them, they make more mistakes

When Should You Use GTO?

Scenario	Recommended Strategy
Online fast-paced tables	Prioritize GTO, player samples are small
Facing unfamiliar opponents	Use GTO first to establish baseline
Opponents of similar skill	GTO is the baseline for breaking even EV
Uncertain about opponent type	Assume opponent uses GTO
Insufficient sample size	When lacking opponent information, trust GTO

When Can You Safely Exploit?

Signal	Exploitative Strategy
Opponent folds too much	Increase bluff frequency
Opponent calls too much	Increase thin value betting
Opponent 3-Bets too much	Tighten 4-Bet calling range
Opponent never 3-Bets	Increase blind steal frequency
Opponent folds too much postflop	Increase continuation bet frequency

Safe "Small Deviations"

If you're unsure about your opponent's specific type but want to improve EV, try small directional adjustments:

• +2% value hands entering opening range
• -2% bluff hands removed from opening range
• Slightly loosen blind stealing when there are 5-6 BB dead money

These adjustments make you lose almost nothing (nearly negligible) against GTO opponents, but when facing leaks you've correctly identified, EV increases significantly.

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8. Real Hand Analysis: The Thinking Process of GTO Preflop Decisions

Theory needs practice to verify. Below, through three real hand examples, I'll show the thinking process of GTO preflop decisions.

Hand Example 1: The Tough Decision at UTG

Scenario: $1/$2 online Cash, 100BB depth, effective stack $200.

Your hand: AJo (AJ off-suit)

Action: Folds to UTG, you're first to act.

GTO thinking process:

1. Position assessment: UTG is the worst position, no positional advantage
2. Hand assessment: AJo is strong, but not super strong—will be in trouble facing 3-Bets
3. Range comparison: UTG opening range is about 12-15%, AJo is on the borderline
4. Opponent impact: There are 5 players behind, anyone could have KK+

Decision: Under strict GTO framework, AJo can open at UTG—but needs to be prepared to fold facing 3-Bets.

Advanced thinking: If you observe that players behind are all tight-passive players (rarely 3-Bet), you can choose to +5% your raise range to exploit.

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Hand Example 2: Blind Steal Decision at BTN

Scenario: $1/$2 online Cash, 100BB depth.

Your hand: 54s (suited 5-4)

Action: UTG, MP, HJ, CO all fold, it's your turn at BTN.

GTO thinking process:

1. Position assessment: BTN is the best position at the table, you have last action rights
2. Dead money calculation: SB $1 + BB $2 = $3 dead money
3. Raise cost: $4 raise amount, about 8:3 pot odds
4. Opponent fold rate: SB and BB usually fold about 70% of their hands
5. Hand potential: 54s has flush and straight potential, value is huge when hitting

Decision: Must raise. 54s in this scenario has EV far exceeding folding—even if occasionally called, it has enough potential to win postflop.

EV Calculation (simplified):

• 70% probability to win $3 = $2.1
• 30% probability to see a flop (EV about $0)
• Expected EV = $2.1, far exceeding folding's $0

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Hand Example 3: Decision Against a 3-Bet

Scenario: $1/$2 online Cash, 100BB depth.

Your hand: AQo (AQ off-suit)

Action: You raise $6 from HJ, CO 3-Bets to $18.

GTO thinking process:

1. Pot odds: You need to call $12 to win $24 (pot) + $12 (opponent's bet) = $36, odds about 33%
2. Range analysis: CO's 3-Bet range usually includes strong hands (QQ+, AK) and some bluffs
3. Blocking effect: You hold AQ, which means the probability of opponent holding AK is reduced
4. Position disadvantage: You'll be in a bad position postflop

Decision: Under standard GTO framework, call. AQo has about 40-45% equity against CO's 3-Bet range, and with the potential pot odds, calling EV exceeds folding.

Key factors:

• ✅ You have a blocker (AQ reduces opponent's AA/KK combinations)
• ✅ Pot odds are sufficient
• ✅ Your hand has enough strength to continue postflop

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Summary: Key Takeaways of GTO Preflop Strategy

Through this article, you should master the following key takeaways of GTO preflop strategy:

Topic	Key Takeaway
GTO essence	Long-term non-exploitable equilibrium strategy, doesn't rely on opponent information
Position importance	Position is more important than hand strength, BTN is the best position
Opening ranges	Gradually loosen from UTG (12-15%) to BTN (50%+)
3-Bet strategy	Balance of value + bluffs, can be more aggressive in late position
Calling decisions	Focus on hand potential, pot odds, positional advantage
Stack depth	Deep stacks value potential, short stacks value absolute strength
Flexible adjustment	When having opponent information, safe deviations beat rigid adherence

Remember: GTO is the starting point, not the end point. Learning GTO builds your systematic poker thinking, then you make targeted adjustments based on opponent characteristics.

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Next Steps: Continue Improving Your Poker Skills

Want to learn GTO strategy more deeply? Here are recommended learning paths:

1. Use Solver tools: Poker Equilab, PIOSolver, etc. can help you verify and analyze ranges
2. Extend to postflop strategy: GTO preflop is just the beginning; postflop strategy is equally important—consider reading our Complete GTO Postflop Strategy Guide
3. Review hands in practice: Review key decisions after each session, verify against GTO
4. Track your stats: Use HUD software to track key metrics like VPIP, PFR, 3-Bet%
5. Verify win rates: Use our Texas Hold'em Equity Calculator to verify your decision EV

🎯 Start Now: Download our GTO range chart tool and practice against it in real games. Only by combining theory with practice can you truly improve your poker level.

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FAQ

Q1: Is GTO preflop strategy suitable for beginners?

Beginners are advised to first master the basic GTO framework, then adjust based on opponent characteristics. GTO provides a reliable "baseline" to help you build correct poker thinking.

Q2: What are the opening ranges for each position?

UTG is about 12-15%, MP is about 18-22%, HJ is about 28-32%, CO is about 40-45%, and BTN is about 50-55%. The later the position, the wider the opening range.

Q3: When should I deviate from GTO strategy?

When you have sufficient samples to understand your opponent's specific leaks, you can make targeted exploitative adjustments. But make sure your GTO foundation is solid before deviating.

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Last updated: May 2026