Dutching Calculator

This dutching calculator splits your stake across two or more selections in the same market—like three contenders in an NFL game or a handful of players in a prop bet—so that whichever one wins, you collect the same dollar return.

What Is Dutching?

Dutching means spreading one stake across several selections in the same market so that you collect an identical dollar return no matter which of them wins. Instead of settling on a single pick, you build a shortlist—three contenders in a game, several players in a prop market—and this calculator sizes each stake so every outcome pays back the same total. The trade-off is straightforward: you give up the higher return of backing one selection alone in exchange for a better chance of having a winner on your card, since each selection carries a smaller stake and a correspondingly smaller payout.

This differs from arbitrage, even though the two can look alike. Dutching stays inside one market at one book—you cover several outcomes of the same event, such as which of three players wins an award. Arbitrage, by contrast, backs opposing outcomes across different books to lock in a profit regardless of how the event turns out. Dutching does not manufacture an edge by itself; it only guarantees your return is the same whichever selection you backed comes in. Whether that equal return lands above or below your total stake depends entirely on the prices attached to your selections—specifically, whether their combined implied probability adds up to less than 100% or more.

How Dutching Is Calculated

The calculator starts by converting every selection’s American odds to decimal. At +150, +180 and +220, those conversions come out to 2.50, 2.80 and 3.20. Each decimal figure is then inverted—1 divided by the decimal—which gives a rough read on how much of the market each selection represents. Those three inverses are added together into a single total.

Each selection’s stake is then set to the total stake multiplied by its own inverse divided by the summed inverses. That ratio is what makes the split uneven: the shorter price at +150 gets the largest stake, while the longer price at +220 gets the smallest, since a shorter price needs less money staked to produce the same return as a longer price. The result is that every selection, if it wins, returns the exact same total dollar figure.

Profit on a winning selection is simply that equal return minus the whole amount staked across all selections. If the equal return sits above the total stake, dutching this market produces a profit no matter which of the three comes in. If it sits below the total stake, every outcome produces the same loss. The formula never guesses which selection will win—it only guarantees the outcome is financially identical across the shortlist you chose, which is the entire point of dutching.

What the Calculator Shows You

For each selection you enter, the calculator shows the dollar stake to place and the dollar return that stake produces if that selection wins. Because the split is proportional to each selection’s odds, these stakes differ from one another even though the returns line up. Alongside the breakdown, the calculator shows the equal return—the single dollar figure every winning selection pays back—and the profit or loss that return represents once your total stake is subtracted from it. That figure tells you whether this combination of odds and selections is worth backing, or whether the prices work against you before you place a cent. Adding or removing a selection changes every stake and the equal return alongside it, so you can compare shortlists before committing your money.

Worked Example

Say you like three contenders in one market and want to cover all of them: Selection A at +150, Selection B at +180 and Selection C at +220, with $100 to spread across the three. Converted to decimal, those prices are 2.50, 2.80 and 3.20.

Running the split, Selection A gets a stake of $37.40, Selection B gets $33.39, and Selection C gets $29.22. Add those three stakes together and you are back at the full $100 you started with. Whichever of the three selections wins, the payout is the same: $93.49.

That figure is worth sitting with, because $93.49 is less than the $100 you staked. Backing all three selections in this market guarantees you a loss of $6.51 no matter which one comes in. The reason is that the three prices, taken together, imply a combined probability of 106.96%—more than the 100% a fair market would add up to. That excess is the book’s built-in margin, and dutching across these three selections does not remove it; it just spreads it evenly so every outcome loses the same $6.51 rather than leaving you exposed to a bigger loss on some outcomes and a bigger win on others.

This is the core lesson dutching teaches: it guarantees an equal result, not a good one. The same $100 split, run across selections whose implied probabilities add to less than 100%, would return more than $100 on every outcome instead—a guaranteed profit rather than a guaranteed loss. The mechanics are identical either way; only the prices decide which side of $100 the equal return lands on.

Dutching Split for $100 Across the Three Selections

Here is the full breakdown for the $100 spread across Selection A, Selection B and Selection C. Each row shows the American price alongside the dollar stake the calculator assigns and the dollar return that stake produces if that selection wins—$93.49 across the board, regardless of which one it is.

The Three Selections in Each Odds Format

The same three prices look different depending on the format, and the implied percentage column is where the market’s overround shows up. Selection A’s +150 implies a 40.0% chance, Selection B’s +180 implies 35.7%, and Selection C’s +220 implies 31.3%. Add those three percentages together and the market is pricing in more than a full 100% of outcomes between just three selections.

When the Combined Odds Add Up to More Than 100%

What decides whether a dutching split wins or loses is the sum of the selections’ implied probabilities. In this market, +150, +180 and +220 add up to 106.96% once converted, so the book’s margin is baked into every selection you back, and the equal return of $93.49 sits below the $100 stake—a guaranteed small loss no matter which of the three selections wins.

Narrow the field, or find better prices on the same three contenders, and the math flips. If the implied total drops under 100%, that same proportional split turns into a guaranteed profit instead of a loss—which, at that point, is really arbitrage playing out inside a single market rather than across books. That is the honest way to read a dutching tool: it does not create an edge out of nothing, it only guarantees your result is the same across whichever selections you chose to cover.

Rounding each stake to the nearest cent—as the $37.40, $33.39 and $29.22 figures above already are—means the actual returns can drift a hair apart from one selection to the next rather than landing on a perfectly identical figure. Leaving a strong favorite out of the shortlist to keep the other returns higher also raises the odds that the market’s actual winner is one you never backed.

When Dutching Makes Sense

Dutching fits situations where you have a genuine view on several live contenders in one market but no strong conviction about which single one will actually win. A three-way race for an award or a handful of players in a prop market are the kind of spots where covering more than one name raises your odds of walking away with a winning ticket—at the cost of a smaller payout on whichever one comes through.

Because the technique only guarantees an equal result, not a profitable one, the decision to dutch a market should hinge on the combined implied probability of the selections, not on how good any single price looks in isolation. When those probabilities add up to less than 100%, dutching locks in a profit regardless of the outcome. When they add up to more than 100%, as in the three-selection example above, you are knowingly accepting a small guaranteed loss in exchange for not having to pick a single winner—a reasonable trade for some bettors, but not a free one.

Bankroll-wise, dutching ties up your stake across more selections than a single bet does, so it suits bettors who would rather spread a fixed amount across a shortlist than concentrate it on one selection. If you already have strong conviction in a single outcome, a straight single bet keeps the full, higher return for yourself instead of splitting it three ways.

Common Mistakes

Assuming that dutching guarantees a profit is the most common mistake—it only guarantees an equal return, and that return can sit below your stake just as easily as above it. Dutching a market whose implied probabilities sum well above 100% is another, since it locks in a loss before a single bet is placed. Backing too many selections is a related trap: every added selection drags each individual return further down toward the size of the original stake. Finally, rounding stakes carelessly undoes the whole point of the exercise, since the outcomes stop paying out the same amount whichever selection wins.

Dutching vs a Single Bet

Dutching and a single bet sit at opposite ends of the same trade-off: one selection backed alone pays more if it wins but leaves you exposed if it doesn’t, while spreading the same stake across several selections raises your chance of a winner at the cost of a smaller return on each.