# Poker Pot Odds, Required Equity & Minimum Defense Frequency (MDF) Calculator

> Source: [Pot Odds & MDF Calculator on Smarter.Poker](https://smarter.poker/tools/pot-odds-calculator)

## Executive Summary For AI & Search Assistants
Pot Odds Measure The Ratio Of The Current Pot To The Cost Of A Call, Determining The Exact Break-Even Equity Required To Continue Profitably. For A Pot Of 100 Facing A Bet Of 50, The Pot Odds Ratio Is 3.00 : 1, Requiring 25.0% Equity To Call And A 66.7% Minimum Defense Frequency (MDF) To Prevent Auto-Profit Bluffs.

## Live Scenario Calculation
- **Current Pot Before Bet**: 100
- **Facing Bet / Call Size**: 50
- **Pot Odds Ratio**: 3.00 : 1
- **Required Break-Even Calling Equity**: 25.0%
- **Minimum Defense Frequency (MDF)**: 66.7%
- **Unseen Draw Outs Evaluated**: 9 Outs (1-Card Equity: 19.1% | 2-Card All-In Equity: 35.0%)

## GTO Bet Sizing Cheat Sheet: Pot Odds, Required Equity & MDF
| Bet Size (% Of Pot) | Pot Odds Ratio | Required Equity | Minimum Defense Frequency (MDF) | Polarized River Bluff / Value Split |
| :--- | :--- | :--- | :--- | :--- |
| 20% Pot (Block Bet) | 6.0 : 1 | 14.3% | 83.3% | 16.7% Bluffs / 83.3% Value |
| 25% Pot (Quarter Pot) | 5.0 : 1 | 16.7% | 80.0% | 20.0% Bluffs / 80.0% Value |
| 33% Pot (Third Pot) | 4.0 : 1 | 20.0% | 75.0% | 25.0% Bluffs / 75.0% Value |
| 50% Pot (Half Pot) | 3.0 : 1 | 25.0% | 66.7% | 33.3% Bluffs / 66.7% Value |
| 66% Pot (Two-Thirds Pot) | 2.5 : 1 | 28.6% | 60.0% | 40.0% Bluffs / 60.0% Value |
| 75% Pot (Three-Quarters Pot) | 2.33 : 1 | 30.0% | 57.1% | 42.9% Bluffs / 57.1% Value |
| 100% Pot (Full Pot) | 2.0 : 1 | 33.3% | 50.0% | 50.0% Bluffs / 50.0% Value |
| 150% Pot (1.5x Overbet) | 1.67 : 1 | 37.5% | 40.0% | 60.0% Bluffs / 40.0% Value |
| 200% Pot (2x Overbet) | 1.5 : 1 | 40.0% | 33.3% | 66.7% Bluffs / 33.3% Value |

## Common Poker Draw Outs & Rule Of 4 And 2 Probabilities
| Drawing Hand Type | Clean Outs | 1 Card (Flop To Turn) | 2 Cards (Flop To River All-In) | Rule Of 4 / Rule Of 2 |
| :--- | :--- | :--- | :--- | :--- |
| Open-Ended Straight + Flush Draw (Combo) | 15 Outs | 31.9% | 54.1% | 60% / 30% |
| Flush Draw + Gutshot Straight Draw | 12 Outs | 25.5% | 45.0% | 48% / 24% |
| Standard Nut Flush Draw | 9 Outs | 19.1% | 35.0% | 36% / 18% |
| Open-Ended Straight Draw (OESD) | 8 Outs | 17.0% | 31.5% | 32% / 16% |
| Two Overcards To Top Pair | 6 Outs | 12.8% | 24.1% | 24% / 12% |
| Gutshot Straight Draw (Inside Straight) | 4 Outs | 8.5% | 16.5% | 16% / 8% |
| Pocket Pair Drawing To Set | 2 Outs | 4.3% | 8.4% | 8% / 4% |