Poker Opening Ranges by Position: GTO Guide
Position is the single most important factor in preflop poker. The hands you open UTG should look nothing like the hands you open on the button — and most players get this badly wrong. Here’s the complete GTO guide to opening ranges for every seat at the table.
Why your position determines everything preflop
Every hand you play preflop, your position at the table is already setting the ceiling on your profitability. Open too wide from early position and you’re building pots you’ll play at a disadvantage for the rest of the hand. Open too tight from the button and you’re leaving serious money on the table.
GTO (Game Theory Optimal) solvers calculate opening ranges that account for two main factors: how many players are left to act behind you (each one is a chance to face a 3-bet or re-raise) and your postflop position (acting last every street is an enormous advantage).
A rough rule of thumb: as you move closer to the dealer button, your opening range gets about 10–15% wider per position. UTG opens roughly 14–16% of hands. The button opens 40–45%. That’s nearly a 3x difference in how many hands you play — and every extra hand on the button is printing money you’re giving up from early position.
Opening range overview by position
| Position | Open % |
|---|---|
| UTG | 14–16% |
| HJ | 18–20% |
| CO | 24–27% |
| BTN | 40–45% |
| SB | 35–40% |
| BB | Defend 40–55% |
Drill these ranges until they’re automatic. Preflop Wizard quizzes you on every position with instant AI feedback.
Position-by-position breakdown
UTG — Under the Gun
Tightest range at the table. You act first on every postflop street.
Open / Defend
AA–77, AKs–AJs, KQs–KJs, QJs, JTs, AKo–AQo, KQo
Avoid
Suited connectors below JTs, any two-gappers, weak suited aces
HJ — Hijack
Two players fold before the action reaches you, so you can open slightly wider.
Open / Defend
AA–66, AKs–ATs, KQs–KTs, QJs–QTs, JTs–J9s, T9s, AKo–AJo, KQo–KJo
Avoid
Offsuit Broadway hands below KJo, weak pocket pairs from 55 down
CO — Cutoff
Only the BTN and blinds behind you. One of the most profitable seats.
Open / Defend
AA–55, AKs–A7s, KQs–K9s, QJs–Q9s, JTs–J8s, T9s–T8s, 98s, AKo–ATo, KQo–KTo, QJo
Avoid
Very weak offsuit hands, most A2o–A6o, 22-44 multiway
BTN — Button
Last to act postflop every hand. Open nearly half your range profitably.
Open / Defend
All pocket pairs, all suited aces, all suited broadway, suited connectors down to 54s, most offsuit broadway combos, A2o–A9o
Avoid
The absolute bottom offsuit trash: 72o–94o type combos with no equity
SB — Small Blind
You’re last preflop but first postflop. Open wide but expect resistance from the BB.
Open / Defend
All pocket pairs, all suited aces, suited connectors down to 54s, all suited broadway, selected offsuit broadways, A2o+
Avoid
Weak offsuit hands that play poorly postflop out of position (e.g. J4o, Q3o)
BB — Big Blind
You already have a bet invested, so you defend wide. The question is call vs 3-bet.
Open / Defend
vs BTN open: defend all pocket pairs, all suited aces, most offsuit aces, suited connectors, offsuit broadways
Avoid
Hands with very poor playability vs the specific opener — tighten vs UTG, loosen vs BTN
Early position: thinking in terms of 3-bets
When you open from UTG at a 9-handed table, there are 8 players left to act — any one of them could 3-bet you. That risk forces a tight opening range, but tight doesn’t mean passive.
Your UTG range should be heavily weighted toward hands that play well in 3-bet pots and multi-way situations: premium pairs (AA–JJ), top Broadway combinations (AKs, AQs), and a selection of high-card suited hands. The key metric is how does this hand play if I get 3-bet? A hand like 97s might be profitable to open from CO, but it’s a clear fold to a 3-bet — that’s a problem when you’re OOP against 8 players.
One mistake players make from UTG: opening too many "speculative" hands like small pocket pairs (22–55) or weak suited connectors. These hands want to see cheap flops in position, not build large pots OOP against 3-bets. GTO solvers typically mix these in at low frequency or exclude them entirely from UTG ranges.
Stop guessing your ranges. Train them.
Preflop Wizard drills GTO opening ranges for every position — UTG through BB — with instant feedback on every hand you’re unsure about.
The button: your license to steal
The button is the most profitable position in poker. Acting last postflop every single street is an enormous structural advantage — and GTO ranges reflect this by opening nearly 3x as many hands as UTG.
On the button you can open hands like 87o, K4s, A3o, and Q7s profitably. These hands are nowhere near strong enough to open from early position, but from the button they generate EV through a combination of fold equity (the blinds fold often enough) and positional advantage when called.
The hands you add from the button vs CO are mostly:
- Weak suited aces — A2s–A6s have strong nut potential even without a pair
- Lower suited connectors — 54s, 65s connect well on low boards
- Suited one-gappers — 86s, 97s, T8s have both straight and flush potential
- Many offsuit broadways — Q9o, J8o, K7o gain enough fold equity in position
Defending from the button vs a 3-bet is also much wider than from early position. With positional advantage, you can profitably call 3-bets with hands you’d fold immediately from UTG.
Preflop Wizard trains you on position-specific ranges — quiz mode, real-time feedback, every seat at the table.
Small blind: the trickiest spot at the table
Small blind play trips up even experienced players. You get to act before the BB preflop, but you’re first to act postflop for the rest of the hand — the worst possible scenario.
Modern GTO strategy opens the SB fairly wide (35–40%) but with a key adjustment: a heavy 3-bet frequency vs late position opens. Because you have to act first postflop, you want to either steal the pot preflop with aggression or build a large pot with premium hands. The "limp-call" SB play you see from recreational players is one of the most exploitable patterns in poker.
Against a BTN open, a GTO SB will 3-bet roughly 15–20% of the time and fold the rest (including many hands it would otherwise open from other positions). Flatting in the SB vs an open is generally a mistake — you’re investing money to play OOP in a pot without much initiative.
Big blind defense: pot odds are your friend
The big blind is unique: you already have a bet in the pot. Against a standard 2.5x open, you’re getting around 3.5:1 pot odds to call — which means you need to defend roughly 55% of the time to prevent your opponent from profitably stealing with any two cards.
The exact defend frequency depends on the size of the open and your opponent’s position:
| Opener position | BB defend range |
|---|---|
| vs UTG | ~35% |
| vs HJ | ~38% |
| vs CO | ~42% |
| vs BTN | ~50–55% |
| vs SB | ~60–65% |
A common mistake: over-folding the BB vs BTN and SB opens. These players are stealing with very wide ranges — you should be calling (and 3-betting) with hands that most players muck, including things like K5o, Q7s, J6s, and low pocket pairs.
How raise sizing affects your range
Opening ranges don’t exist in isolation — they interact with your raise size. A standard 2.5x open in a cash game allows you to open wide because you’re risking relatively little. Larger opens (3x, 4x) tighten your range because you’re investing more to steal the same blinds.
In tournaments, stack depth changes everything. With 15–25 big blinds, many hands shift from "open-raise" to "open-shove" territory. With 8 or fewer BBs, almost any hand worth playing should be shoved, not raised.
For cash games, the most common exploitative adjustment is sizing up against recreational players who call too wide. Against a player who calls 60–70% of opens, raising to 4–5x with your strong hands extracts more value than a standard 2.5x ever could.
The 4 most common positional mistakes
Mistake #1: Opening too many hands from UTG/HJ
Fix: Cut speculative hands (small pairs, weak suited connectors) from early position. They look profitable but bleed money in 3-bet pots.
Mistake #2: Not opening enough from the button
Fix: If you’re not opening 40%+ from the BTN, you’re leaving EV on the table. Even marginal hands like K4s and Q7o are opens from the button.
Mistake #3: Limping from the small blind
Fix: The SB limp-call is one of poker’s most exploitable plays. 3-bet or fold. If you’re not comfortable doing that, you need to study your SB range.
Mistake #4: Over-folding the big blind
Fix: Against BTN and SB steals, you’re getting excellent pot odds. Defend wide. The cost of over-folding vs positional stealers is significant over a large sample.
How to actually learn these ranges
Reading a guide like this is a starting point — it doesn’t automatically translate to real-game decisions. The only way to internalize position-specific ranges is deliberate repetition: seeing a hand, identifying your position, and making the correct decision quickly enough that it becomes instinct.
A few methods that actually work:
- Flashcard-style drills — deal yourself two cards, name your position, decide open/fold before peeking at a range chart
- Position-specific study — rather than studying all positions at once, master one per week (start with BTN and BB)
- App-based training — Preflop Wizard quizzes you hand-by-hand with instant feedback on whether your decision was correct
- Session reviews — after each poker session, look up 5 preflop hands you weren’t sure about and verify against GTO ranges
Most players underestimate how long range memorization takes — and overestimate how much reading helps vs. active drilling. The goal is zero-latency decisions: you should know your BTN opening range the same way you know the multiplication tables.
Frequently asked questions
What hands should I open from UTG?
From UTG at a 9-handed table, a GTO opening range is roughly 14–16%: AA–77, AKs–AJs, KQs–KJs, QJs, JTs, AKo–AQo, and KQo. Some solvers include mixed-frequency opens with TT, 99 but these are near-pure opens. Avoid speculative hands like small suited connectors from this position.
How wide should I open from the button?
The button opens roughly 40–45% of hands in GTO play — nearly 3x the UTG range. This includes all pocket pairs, all suited aces, all suited broadway, suited connectors down to 54s, and many offsuit broadway combinations. If you feel like you’re opening too wide on the button, you probably aren’t.
Should I ever limp from the small blind?
Modern GTO strategy does incorporate some SB limping, but with a twist: a limp-3bet range. The primary SB strategy should be open-raise or fold. Limp-calling is exploitable because you’re giving the BB a free look at a flop while giving up the ability to 3-bet bluff profitably.
What is the correct big blind defense frequency?
The BB should defend roughly 40–65% depending on the opener’s position. Against BTN opens, defend around 50–55%. Against UTG opens, tighten to ~35%. The key principle: pot odds require you to defend wide enough that your opponent can’t profitably steal with any two cards.
Do opening ranges change in tournaments vs cash games?
Yes, significantly. Tournament stack depth changes which hands are open-raises vs push-folds. ICM pressure tightens ranges near the bubble or at the final table. In cash games with 100BB+ stacks, you can open more speculatively because implied odds are higher and there’s no ICM penalty.
How do I practice preflop ranges without a solver?
Preflop Wizard is built specifically for this: it quizzes you on position-specific ranges and gives instant AI feedback on each decision. You can drill every position — UTG through BB — on your phone between sessions, which is far more effective than reviewing static charts.