Definition
Closing line value (CLV) measures how much better your bet price was than the final closing line on the same side. If you bet −3 and the line closes at −5, you captured +2 points of CLV. CLV is the strongest leading indicator of long-run profitability — bettors who consistently beat closing lines are demonstrably processing information better than the market. Wins and losses over short samples are noise; CLV is signal. Pinnacle's closing line is the accepted benchmark.
Worked Example
Bet Bengals +7 (−110) on Monday. Line closes Bengals +4.5 (−110) by Sunday. CLV = +2.5 points. Even if Bengals lose by 6, the bet was +EV at placement. Over 100 bets with average CLV of +1.5 points, expected ROI is approximately 2–4%. Zero CLV over 200+ bets means no demonstrable edge exists.
Why It Matters
CLV filters out luck. Two bettors can have identical win rates over 100 bets but opposite CLV — the positive-CLV bettor has real skill, the negative-CLV bettor is running hot and will revert.
