Betting concepts explained
Short, plain-English guides to the maths that decides whether a bet is any good — closing line value, expected value and how same-game multis are priced. These are education and research explainers, not betting advice, and there are no tips or inducements here.
Closing line value (CLV)
The single best signal that you’re beating the market — what CLV means, why the closing price matters, and how to measure whether your bets consistently beat it.
Expected value (+EV)
How to tell a bet is mathematically worth it — turning your true win probability and the price on offer into an expected value in dollars, and what +EV versus −EV really means.
Same-game multis (SGMs)
How correlated legs from the same match are priced — why a same-game multi isn’t just the individual odds multiplied together, and what that correlation does to the true price.
Why these three concepts
Expected value tells you whether a price is worth taking; closing line value tells you, after the fact, whether the market agreed you were right; and same-game multis are where mispriced correlation quietly eats into both. Understand the three together and you can judge a bet on its maths rather than on a feeling. Once the concepts click, our free betting calculators let you run the numbers yourself, and how HaterPicks works explains where our graded projection models fit in.
Put the theory to work
Reading about expected value is one thing; checking a real price is another. These free calculators need no account and store nothing:
See the concepts applied to real slates
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