Closing Line Value (CLV) Explained

What CLV measures

Closing line value compares the price you bet to the final pre-game line. Beating the close means you got a better number than the sharpest late market — a positive process signal even when the bet loses.

The closing line incorporates late injury news, sharp money, and market consensus. It is often the best public benchmark for whether your entry price was strong.

Tracking CLV yourself

Log bet timestamp, your price, and closing price from your book or a historical archive. Convert both to implied or no-vig probability and compare the difference.

Fantasy Forge does not operate live odds boards or automated CLV trackers. Manual logging in a spreadsheet or bet journal works for serious process review.

CLV vs EV

Positive CLV correlates with long-term success but differs from EV based on your model. You can beat the close with a bad model on variance, or bet +EV with negative CLV if your edge is real but the market moves against you. Use both lenses.

FAQ

Is positive CLV guaranteed profit?

No. CLV measures price quality relative to the close, not certainty of winning individual bets. Variance still dominates short samples.

How much CLV is good?

Even small consistent edges — a few cents on the line or half a percent in probability — compound over hundreds of bets. Context varies by sport and market type.