Closing Line Value Calculator

Scope of this calculation

The requested output is closing-line probability edge. The page is intended to measure how the price taken compares with the market closing price. Under the entered assumptions, treat event identity and calculation time as part of the input set.

Closing Line Value depends on the event scope represented by Odds taken and Reference stake.

What each entry represents

• For this market, use a current source for Odds taken. Here it means enter positive or negative American odds.
• Closing odds records enter positive or negative American odds.
• Reference stake is a separate input defined as stake used to express the price difference.

For the saved case, do not copy a sample default into a live case without checking its source.

The headline describes the economics of the entered ticket or position.

Gross return, net profit, and capital committed should stay separate.

At this stage, every change can be traced to a visible field or the formula.

Conditions to review

For this comparison, a material participant, format, or source change requires a new closing-line probability edge baseline.

As a practical check, cash, restricted credit, gross return, and net profit may require separate accounting.

For the selected event, use an executable price for the exact selection and stake, not an earlier screenshot or an unavailable best quote.

The Cash-Out Fair Value handles a different calculation and should open as a new case.

A separate arithmetic check

In this model, a separate input set allows inspection without overwriting the baseline.

For the Closing Line Value Calculator, use the worked case as a reproducibility check before entering live market assumptions. None of its values should be copied automatically.

Applying the Closing Line Value rule: CLV compares the break-even probability of the bet price with the closing price.

Bet break-even rate is 54.13%. Closing break-even rate is 52.15%.

For this closing-line probability edge example, when the worked result differs, verify the field values one by one rather than changing several assumptions together.

When using the result, preserve unrounded values until final display.

The answer is exact only for the entered prices and terms.

Recalculate after a quote, limit, or eligibility change.

In the current scenario, use the output as decision support and keep personal limits outside it.

Which input should be tested first

• Keep stake fixed and compare the accepted price with one realistic adverse quote.
• For promotions or hedges, test the actual eligible maximum.
• Do not change multiple prices when identifying the source of a return difference.

Where the method can break

• Closing line value is a price-quality measure, not proof that one bet was correct.
• As a practical check, review promotion terms, limits, push treatment, void rules, and whether stake is returned before comparing profit.
• For this comparison, correlation, selection bias, and small samples can remain when every field has a source.

In this model, preserve the first answer when Reference stake changes.

Store closing-line probability edge with event, selection, compared line, time, and source for Odds taken.

For the selected event, retaining both cases makes the size and direction of revision visible.

Market compatibility questions