CLV (Closing Line Value)

What CLV (Closing Line Value) means

Closing line value measures how the price you got compares to the closing line - the final price available right before the game starts. If you bet a team at +150 on Tuesday and that same side closes at +120 on Sunday, you beat the closing line: you got a better number than the market eventually settled on, which is positive CLV. If the line instead moved to +180 by kickoff, you'd have negative CLV, since the market ended up disagreeing with your price in the opposite direction. CLV matters because the closing line is widely considered the single sharpest, most information-complete number in the entire betting market - it reflects every piece of injury news, weather update, and dollar of sharp and public money that hit the market before kickoff. A bettor who consistently beats the closing line over a large enough sample is, by definition, consistently identifying value before the market fully catches up to it, which is why professional bettors and sharp-tracking services treat CLV as a more reliable long-term skill indicator than short-term win/loss record - you can go on a losing streak while still beating closing lines, and vice versa. Tracking CLV requires recording the line at the moment you bet and comparing it to the closing number after the fact; most serious bettors keep a spreadsheet or use a tracking app specifically for this purpose, since it's very easy to misremember lines after the fact.

Key points

• Closing line value measures how the price you got compares to the closing line - the final price available right before the game starts.
• CLV matters because the closing line is widely considered the single sharpest, most information-complete number in the entire betting market - it reflects every piece of injury news, weather update, and dollar of sharp and public money that hit the market before kickoff.
• Tracking CLV requires recording the line at the moment you bet and comparing it to the closing number after the fact; most serious bettors keep a spreadsheet or use a tracking app specifically for this purpose, since it's very easy to misremember lines after the fact.

Example and context

Related glossary terms

These terms sit in the same part of the betting vocabulary and are useful to read next.