Reference / Poker

Expected value

Odds and maths, intermediate

Also called EV.

What a decision is worth on average, weighing each outcome by how likely it is.

A call of 10 points that wins 40 points more a quarter of the time, and loses the 10 the rest of the time, has an expected value of 0.25 × 40 − 0.75 × 10 = 2.5 points: worth making, even though it loses most of the time.

This is the idea behind judging decisions rather than results.

New to poker? Play your first hands, with a coach at every decision. Practice points only.

Try it yourself

Calling costs 4 points. If you win, you collect 16 points that were already in the pot; you win one time in four. On average, what does each call win or lose?

2 questions, a minute or two. Nothing to finish first.

Learn and practise it

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