How boosted parlay stakes are sized

What that line actually is

Under the headline odds on every built ticket you get Bet $X → win $Y. The first figure is a suggested stake, sized for that ticket from three things you control: your bankroll, your risk tolerance and your rounding step, all under My Wager Sizing on Settings. It is not a minimum and not a house unit — bet whatever you like.

The second figure is profit, not total return. A ticket reading "Bet $10 → win $60" pays $70 back at the window.

The settings behind it

Bankroll, Risk Tolerance and the rounding step do the same job here that they do on every bet card, and How we size your wager is the full account of them: fractional Kelly, what each risk level trades away, and why an unsaved bankroll makes every dollar figure someone else's. A worked example under the controls recalculates as you change them, and wager sizing is a paid feature — see Plans and what each one includes. The rest of this page is what a boosted parlay does differently.

One player prop halves the whole ticket

The player-prop halving is not applied leg by leg: if any leg is a prop, the whole ticket's stake is cut in half, because a parlay dies on its worst leg. A second prop does not halve it again.

Rounding, and the one time it looks broken

This is the screen where the rounding step most often looks switched off, because the maths runs in a fixed order and rounding is deliberately last:

1. Kelly stake for this ticket's edge, multiplied by your risk-tolerance fraction and your bankroll.
2. Halved, if any leg is a player prop.
3. Snapped to your rounding step.

Rounding goes to the nearest step, not down: $14 at a $25 step becomes $25. The one exception is a stake under half a step, where the nearest step would be $0 — not a bet — so the ticket shows the nearest dollar instead. That is why a $3.60 stake shows as $4 at a $25 step but becomes $5 at a $5 step. The setting is not broken; the stake is too small to land on your step.

Same-game tickets size off the middle of the range

A same-game ticket publishes an EV range rather than a single number, and the badge is keyed to its low end — the cautious read. The stake is not: it sizes off the middle, because fractional Kelly is already the discount for being unsure and charging for the doubt twice would under-bet every same-game ticket. Why the range exists, and how wide it gets, is How we price a same-game parlay.

The boost is already in the number

Kelly sizes against the price you are actually getting, so raising the boost percentage raises the suggested stake as well as the payout. Set the boost to 0 and the ticket sizes on plain combined odds. With no positive edge at the offered price there is nothing to size, and the stake floors at $1.