Closing Line Value: what it measures and what it cannot prove

CLV compares two moments, not two opinions

Closing Line Value compares the price recorded at entry with the market price near closing. If an entry was frozen at 2.08 and the comparable market closed at 1.88, the earlier price was more generous.

That movement does not prove that the sporting outcome will win. It indicates that the market later assigned a higher implied probability to the same outcome.

Why BetStudio treats CLV as an early health signal

Short-term returns are noisy. A system can make several good decisions and lose, or several weak decisions and win. Repeated positive CLV across an adequate sample is evidence that the process may identify price inefficiency before the market closes.

• Use comparable markets and timestamps.
• Report the full eligible sample.
• Separate demo, backtest and live decisions.
• Never present CLV as a profit guarantee.

The denominator matters

A single positive example is a case study, not a track record. BetStudio will publish the number of eligible decisions, distribution of CLV, ROI, drawdown and calibration together so one flattering metric cannot carry the entire story.