Profit boost calculator: is the boost worth it?
Enter your odds and a 25%, 50%, or 100% profit boost to see the boosted price and what the bet is worth. A 50% boost on +150 plays like +225.
Result
- Boosted odds
- +225
- Fair odds
- +138
- Fair chance
- 42.0%
- Expected value
- $9.14
- EV per $1
- 36.6%
Worth it: positive expected value
Pro fills in the fair price from the sharp market for every bet at your books, and finds the best places to use a boost tonight. See Pro
Get this math on every promo at your books
Parity Odds Pro prices every bet, prop, and promo against the fair price, every few minutes. A research tool, not a sportsbook.
How it works
A profit boost multiplies your winnings, not your stake. A 50% boost on +150 pays $225 on a $100 bet instead of $150, so it plays like +225.
Whether that's worth betting depends on the real chance the bet wins. Pick the game and we fill in the fair price from the sharp market, or enter a sharp book's price (both sides, so we can take the vig out) or your own percentage.
Boosts usually cap the stake. Bet the cap when the expected value is positive; skip it when it isn't, even if the boost looks big.
How much is a profit boost worth?
A boost is worth the whole bet's expected value at the boosted price. That's the bet's own value at your book's normal price, which is usually a little negative because of the vig, plus what the boost adds on top.
Say your book has a team at +140 and you have a 50% profit boost with a $50 max bet. A sharp book prices the same game +150 / -170. With the vig removed, the team's fair chance is 38.8%, or about +157.
Without the boost, $50 at +140 is worth -$3.38, because +140 is worse than the fair price. The boost turns +140 into +210, so a win pays $105 instead of $70. That extra $35, collected 38.8% of the time, adds $13.60. Together the boosted bet is worth $10.22. Enter those numbers above to check them.
What's the smallest boost worth taking?
In that example, any boost above 12.4% makes the bet worth it. Below that, the extra winnings don't cover the gap between +140 and the fair price. The breakeven depends on how far your book's price sits from fair, so work it out for each bet rather than using a rule of thumb.
On a parlay, the vig compounds with every leg, so the boost has more to make up. Should you use a profit boost on a parlay? lists the breakeven boost for one to six legs.
A boost usually can't share a bet slip with another offer, but it can run alongside one on a different bet. How to stack sportsbook promos covers what combines and what doesn't.
More detail: Should you use a profit boost on a parlay?, Profit boosts vs. odds boosts: what each one is worth.