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Betting, explained.

Start with the essentials. Clear explanations, worked examples & tools that make the numbers easier to understand.

Start with the basics.

One clear step at a time

Five short guides, in a useful order. Start at the beginning or choose the number you want to understand.

  1. Lesson 1 · 2 min read

    Decimal odds explained: what 1.80, 2.00 & 3.50 mean

    Read the price & calculate a winning return.
  2. Lesson 2 · 2 min read

    Stake, return & profit: three betting numbers to keep separate

    Keep money risked, returned & earned separate.
  3. Lesson 3 · 1 min read

    Implied probability: turn betting odds into a percentage

    Translate a price into a percentage.
  4. Lesson 4 · 1 min read

    Bookmaker margin explained: why prices add to more than 100%

    Understand why the percentages can exceed 100%.
  5. Lesson 5 · 2 min read

    Fractional, decimal & American odds explained

    Read the same price in three different formats.
Understand the numbers

What do your odds mean?

See the implied probability & possible return behind decimal odds. An explanation, never a prediction.

Implied probability50.0%
Total return if successful20.00
Profit if successful10.00

Amounts use the same currency as your stake. Return includes the stake. A losing bet loses the stake. Implied probability includes the price's margin; it is not the true chance of winning.

Three useful habits.

Practical betting information

Read the market, understand the return & check what the price includes.

Go deeper.

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