CLV calculator
Against the fair close of −115, the bet’s closing-line value is +2.06%. Beating the close is the best single sign that a bettor’s prices are good.
Closing-line value is how much better the price you took was than the fair closing price: the close’s chance with the vig removed, times the decimal price you took, minus one. Type the price you took and both sides’ closing prices.
- Closing-line value
- +2.06%
- the price taken against the fair close
- Fair close
- −115
- a 53.5% chance, the close without its vig
- Break-even taken
- 52.4%
- the chance the price taken needed
- Against the vigged close
- +6.06%
- overstated: the close still carried the book’s margin
Questions about the clv calculator
What is closing-line value?
How the price you took compares with the market’s final price before the game. The close holds the most information, so beating it is the best single sign that your prices are good.
Why take the vig out of the close?
The close still carries the book’s margin, so comparing against it as is overstates your CLV. The card shows both, and the fair one is the one to track.
How many bets does it take to trust a CLV record?
Far fewer than a win-loss record needs, because CLV varies much less than results do. Even so, a small average edge still needs a fair sample before it stands out from noise.
Is positive CLV the same as winning?
No. A bet can beat the close and still lose. Over many bets, a positive average CLV is what a winning record is built on.