This is the core step that turns betting from guessing into decision-making.
You are not trying to “predict the winner.”
You are trying to identify when the market price is wrong relative to your probability estimate.
Step 1: Convert the Odds to Market Probability
Implied Probability (%) = 1 ÷ Odds × 100
Example:
Odds 2.20 → 1 ÷ 2.20 = 45.45%
This is what the market is saying.
Step 2: Write Down Your Probability Estimate
You must assign a percentage.
Example:
Your estimate = 52%
No percentage estimate means no value evaluation.
Step 3: Compare the Two Numbers
If:
Your Probability > Market Probability → Potential +EV
Your Probability = Market Probability → Break-even
Your Probability < Market Probability → -EV
Example:
Your estimate: 52%
Market implied: 45.45%
Difference: +6.55%
That gap is your edge if your estimate is accurate.
Step 4: Confirm the Exact Price You Took
Value depends on the odds you actually bet.
If the line moved and you took worse odds, the edge may shrink or disappear.
Selection is not enough. Price is everything.
Step 5: Decide With Discipline
If the gap is real and meaningful:
Place the bet using your staking rules.
If not:
Pass.
Passing is a strategic decision.
Core Principles
Market odds are market probability.
Your estimate must be independent and written as a percentage.
Value exists only when your probability exceeds implied probability.
Price movement can remove edge.
Discipline means betting only when the gap exists.
