Definition
- Polarized range: Contains only strong value hands and bluffs (nothing in between)
- Merged (linear) range: Contains a spectrum of hands from best to marginal
Visualizing the Difference
Polarized Range
[NUTS] [BLUFFS]
↑ ↑
Value Air
Skips the middle!
Merged Range
[NUTS] [STRONG] [MEDIUM] [MARGINAL]
↑ ↑ ↑ ↑
Best Cutoff
Continuous from top down
When to Use Polarized Ranges
| Situation | Why Polarized |
|---|---|
| River betting | No more cards to come |
| Large bet sizes | Need strong hands or air |
| Against calling stations | They call with everything |
| Nuts vs bluff spots | Clear value or give up |
Polarized Example
River: A♠ K♥ Q♣ 7♦ 2♠
Your betting range:
- Value: J-T (straights), sets, two pair+
- Bluffs: Missed flush draws, missed pair draws
- NOT: Top pair, medium pairs (check these)
When to Use Merged Ranges
| Situation | Why Merged |
|---|---|
| Flop betting | Wide ranges, much equity |
| Small bet sizes | Risk less, bet more hands |
| Against weak players | Value bet thin |
| When villain can't raise | No risk of getting raised |
Merged Example
Flop: K♦ 7♣ 3♠ (dry)
You c-bet 1/3 pot with:
- All pairs (value)
- Ace-highs (some value, some equity)
- Backdoor draws (potential)
- Some air (frequency)
It's a linear range from best to okay.
Sizing and Range Shape
| Bet Size | Range Shape |
|---|---|
| Small (25-33%) | Merged |
| Medium (50-66%) | Balanced |
| Large (75-100%) | Polarized |
| Overbet (100%+) | Very polarized |
Why Sizing Matters
| Small Bet | Large Bet |
|---|---|
| Can include thin value | Need strong value |
| Bluffs need less folds | Bluffs need more folds |
| Many hands profitable | Fewer hands work |
Practical Application
Dry Flop (K♠ 7♦ 2♣)
Bet small (1/3), merged range:
- All made hands
- Some backdoors
- Even some air
Wet Flop (J♥ T♥ 8♣)
Bet large or check, polarized:
- Strong hands (bet big for protection)
- Strong draws (semi-bluff)
- Air (give up or bet big as bluff)
River Spots
Always polarized on river:
- Value = hope they call
- Bluff = hope they fold
- Medium = check
Common Mistakes
| Mistake | Problem |
|---|---|
| Betting medium hands big | Neither value nor bluff |
| Small bets with only value | Missing bluffs |
| Polarizing on the flop always | Missing merged spots |
Key Takeaway
Use merged ranges with small bets (especially on flops). Use polarized ranges with large bets (especially on rivers). Match your sizing to your range shape—small bets = many hands, big bets = nuts or bluffs.