Betting
How odds, margins and handicaps actually work in the sixth tier — educational guides, no tips.
Odds to probability, in one table
Decimal odds already contain the bookmaker's margin. Divide 100 by the odds to see the implied chance, then compare with your own reading of the game.
| Decimal odds | Implied probability | Odds with a 5% margin |
|---|---|---|
| 1.50 | 66.7% | 1.58 |
| 2.00 | 50.0% | 2.10 |
| 2.50 | 40.0% | 2.62 |
| 3.00 | 33.3% | 3.15 |
| 4.00 | 25.0% | 4.20 |
| 5.00 | 20.0% | 5.25 |
Arithmetic only: 100 ÷ odds. The right-hand column is what the same chance would look like after a five per cent margin — nothing here is a prediction for any match.
How to read football odds: what a price of 2.50 really means
Odds are a price, not a prediction. Here is how the three formats work, what 2.50 means in practice, and how to convert a price into a probability you can test.
Implied probability and margin: why the total passes 100%
Add the three outcomes in a match market and the total lands above 100 per cent. That gap is the margin, and it changes how every price should be read.
Handicaps and totals: how the lines are settled and priced
A handicap asks how big the gap will be, a total asks how many goals. Both are simple once the settlement rules are clear, including the push.
Betting on non-league football: thin markets and thin data
The sixth tier is a different market: thinner, noisier, and more exposed to postponements. Here is what changes, and the limits worth agreeing before August.