Cold Call vs 3-Bet: The Price, the Stack-to-Pot Ratio and the Players Behind
Cold call vs 3‑bet against an open? A cold call costs less but lets the next players in and keeps a high stack-to-pot ratio; a 3‑bet costs more, can win the pot right away and lowers that ratio. On the button against a 2.5bb cutoff open with the blinds folding, a cold call leaves a stack-to-pot ratio of 15; a 3‑bet to 8bb that gets called drops it to 5.3.
A♣5♣ in the small blind facing a button open
The button opens to 2bb and you are in the small blind with A♣5♣. Fold, call or 3‑bet to 9bb?
See the answer
The two options, with 100bb. Your small blind is already in, so the call here is a flat call, not a cold call:
| Option | What you add | What it needs | Stack-to-pot ratio afterwards |
|---|---|---|---|
| Flat call | 1.5bb | 30% equity, big blind still to act | 19.6 if the big blind folds |
| 3‑bet to 9bb | 8.5bb | 70.8% folds for a pure bluff | 4.8 if the button calls |
Against hands the button opens, before the flop:
| Button's hand | A♣5♣'s equity |
|---|---|
| K♦8♠ | 62.8% |
| J♦9♠ | 59.2% |
| Q♥T♣ | 58% |
| K♥J♥ | 56.5% |
| 7♥6♥ | 55.5% |
| 4♦4♥ | 48.1% |
| A♥T♦ | 34.3% |
| A♦K♥ | 31.9% |
The flat call lets the big blind in and plays a high-ratio pot out of position. The 3‑bet often takes the pot right away and, when called, plays a low-ratio pot where A♣5♣ is ahead of the unpaired hands without an ace in the table. The expected answer is the 3‑bet.
The price of a 3‑bet bluff by size
Small blind against a 2bb button open, 100bb stacks:
| 3‑bet | What you add | Folds needed for a pure bluff | Stack-to-pot ratio if called |
|---|---|---|---|
| 8bb | 7.5bb | 68.2% | 5.4 |
| 9bb | 8.5bb | 70.8% | 4.8 |
| 10bb | 9.5bb | 73.1% | 4.3 |
The bigger the 3‑bet, the more folds it needs, and the more committed the pot it creates when called.
Keep going
- What comes next when you get 3‑bet: facing a 3‑bet out of position.
- What the remaining stack changes: stack-to-pot ratio.
- The spot's hand: suited aces.
- Why the small blind acts first: poker positions.
- Preflop decisions to practice: the preflop quiz.
- One spot every day: the daily poker puzzle.
- The same decision from the big blind: big blind defense vs button.
- Every small blind option: small blind strategy.
- What the term means: what is a 3‑bet.
- When nobody has raised yet: limping in poker.
Sources
- Every equity is computed by exact enumeration with the app's equity module, and every price with its pot odds module, checked on October 11, 2026.
- The answer to the spot follows rules written by the app's author; it does not come from a solver.