How To Think In Ranges – Pre Flop


Spot: UTG vs BB Full Ring (100bb deep, early tournament level)

Hero: Big Blind with 9♥ T♥
Villain: Under the Gun (UTG) open raises


🎯 Step 1: Understanding Ranges – Not Hands

The first mental shift you have to make when getting better at poker is this:

Don’t try to guess exactly what hand your opponent has.
Instead, think in ranges – all the possible hands they could have.

When someone raises preflop, especially from an early position like UTG, they’re representing a strong group of hands. These are often tight, high-value combos.


📸 Villain’s UTG Range (GTO Based)

Based on GTO preflop charts, UTG is opening around 10.1% of hands. That equals 134 combinations out of the 1326 total possible starting hands.

Pairs:

AA, KK, QQ, JJ, TT, 99, 88, 77, 66

Suited Broadways:

AKs, AQs, AJs, ATs
KQs, KJs, KTs
QJs, QTs
JTs

Offsuit Broadways:

AKo, AQo, KQo

Suited Aces:

A9s, A5s

Suited Connectors:

T9s, 98s

It’s a tight, disciplined range. Now let’s think about Hero’s hand.


👀 Step 2: Hero’s Hand – 9♥ T♥

Hero holds 9♥ T♥, a solid speculative hand:

  • Can make straights and flushes
  • Plays well postflop, especially 100bb deep
  • Not strong enough to 3-bet vs UTG
  • Good candidate to call and see a flop

🧙‍♂️ Step 3: Blockers – What Can Villain Not Have?

Since Hero holds T♥ and 9♥, we can eliminate some combos from Villain’s range. Let’s break this down hand-by-hand.


❌ Blocked Hands (And Combos Removed)

T9s (Ten-Nine suited)

  • Total: 4 combos (T♥9♥, T♠9♠, T♦9♦, T♣9♣)
  • We hold T♥9♥
  • Blocked: 1
  • Remaining: 3

TT (Pocket Tens)

  • Total: 6 combos
  • We hold T♥, so block T♥T♠, T♥T♦, T♥T♣
  • Blocked: 3
  • Remaining: 3

99 (Pocket Nines)

  • Total: 6 combos
  • We hold 9♥, so block 9♥9♠, 9♥9♦, 9♥9♣
  • Blocked: 3
  • Remaining: 3

98s (Nine-Eight suited)

  • Total: 4 combos
  • We block 9♥8♥
  • Blocked: 1
  • Remaining: 3

JTs (Jack-Ten suited)

  • Total: 4 combos
  • We block J♥T♥
  • Blocked: 1
  • Remaining: 3

QTs (Queen-Ten suited)

  • Total: 4 combos
  • We block Q♥T♥
  • Blocked: 1
  • Remaining: 3

ATs (Ace-Ten suited)

  • Total: 4 combos
  • We block A♥T♥
  • Blocked: 1
  • Remaining: 3

A9s (Ace-Nine suited)

  • Total: 4 combos
  • We block A♥9♥
  • Blocked: 1
  • Remaining: 3

KTs (King-Ten suited)

  • Total: 4 combos
  • We block K♥T♥
  • Blocked: 1
  • Remaining: 3

A5s, AKs, AQs, AJs, KQs, KJs

  • No Tens or Nines involved, not blocked

📊 Combo Block Summary

HandTotal CombosBlockedRemaining
T9s413
TT633
99633
98s413
JTs413
QTs413
ATs413
A9s413
KTs413

💡 Total Blocked Combos: 13
That’s 13 hands from Villain’s tight range that are now less likely, just because Hero holds 9♥T♥.


✅ Step 4: Final Thought Process

“Okay, Villain raised from UTG, which means she probably has a strong hand.
I’m in the Big Blind, already put in 1 BB. I have 9♥T♥.

That’s not strong enough to raise back, but it can make straights and flushes.
Also, I’m holding two cards that she needs to make some of her strong hands — so there’s a slightly lower chance she has them.

I’m going to call and see the flop.”


🔺 Wrap-Up

Understanding ranges isn’t about guessing. It’s about narrowing down the possibilities.

By thinking in ranges, and by paying attention to the cards you hold (your blockers), you can:

  • Spot which strong hands your opponent is less likely to have
  • Make smarter decisions preflop
  • Avoid overthinking specific hands

Poker isn’t “Does she have AK?”
It’s “How often does she have AK given the range and blockers?”

Hero with 9♥T♥ knows he’s behind Villain’s strong range, but he has a playable hand with removal effects. It’s a classic spot to defend smartly, and think deeper than just the cards.

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