General Betting Math
Dutching Calculator
This focused calculator estimates dutching allocation. It is useful for comparing labeled cases, not for turning uncertain inputs into certainty.
Inputs needed for dutching allocation
Sample values are loaded for an immediate result. They are not typical prices or a suggested wager.
Dutching: purpose
Split a stake across three outcomes to target the same gross return. Treat the entered event, selection, and period as part of the Dutching Calculator input set even though they are not numeric fields; use a separate case when the market definition changes.
Use the price offered for the exact selection rather than an earlier screenshot or a price from another sportsbook. A final pre-comparison check for this page is that both prices must still be available at the required stakes before the calculated return can be treated as obtainable.
Calculation method
Calculation: stake share is proportional to the inverse of each outcome price.
For the Dutching Calculator, the page applies stake share is proportional to the inverse of each outcome price; every numeric term comes from a displayed field.
The Dutching Calculator reads Outcome A decimal odds on this basis: decimal price for outcome A.
A correct formula still produces a poor comparison when fields use incompatible periods, prices, or scoring definitions; do not use extra decimal places as a substitute for uncertainty.
What to enter for this market
Before calculating dutching allocation, check Total stake: amount divided across outcomes; its timestamp should match the market comparison.
Use Outcome A decimal odds only on the basis printed beside the field; decimal price for outcome A; a modeled value should be identified as such.
In the Dutching Calculator, Outcome B decimal odds adds another assumption: decimal price for outcome B; keep its source with the result.
Outcome C decimal odds modifies this dutching allocation case; decimal price for outcome C; label it as observed, quoted, or projected.
Rebuild dutching allocation after this condition: a price move changes the economics even when the event assumptions stay the same.
The Cash-Out Fair Value may be the next useful step when the decision depends on it as well as dutching allocation.
Reading dutching allocation
For the Dutching Calculator, the displayed estimate is most useful as a comparison point when its source values and timestamp are retained; compare dutching allocation only with the same selection, period, and grading basis.
Change one uncertain field at a time so the reason for a moved result remains clear; save the source beside the revised output.
Compare this output with the Football Vig only when both calculations use the same event and timestamp.
Checking the arithmetic
For the Dutching Calculator, the values below differ from the form defaults; they make the method checkable and do not describe a recommended or typical wager.
Total stake is $315; outcome A decimal odds is 3.648; outcome B decimal odds is 4.428; outcome C decimal odds is 5.17.
Applying the Dutching rule: stake share is proportional to the inverse of each outcome price.
- Outcome A stake: $124.53
- Outcome B stake: $102.60
For this dutching allocation example, a mismatch usually comes from units, rounding, a sign error, or a different option selection; check those items first.
Questions that arise before comparison
Can sportsbook rules override this calculation?
Yes. The Dutching Calculator does not control how the sportsbook grades an event.
What is the purpose of the worked Dutching Calculator case?
It provides a reproducible check of stake share is proportional to the inverse of each outcome price.
Do extra decimals make dutching allocation more reliable?
No. More decimals cannot repair uncertain or stale assumptions.
How should uncertainty in outcome c decimal odds be tested?
Save the baseline, change only outcome c decimal odds, and compare the two outputs.
Does a favorable difference prove value?
No. First test input quality and confirm that the price is still available.
Where do current market values enter the Dutching Calculator?
They enter only through the visible fields completed by the user.