Pick a bonus type, enter the terms, and see the exact hedge to place at a second book — and the profit you lock in regardless of who wins. These are the worked examples from the Ungambled book, made interactive. All math runs in your browser; nothing is sent anywhere.
Stakes are exact. In practice, round your bets to look like a normal customer — the book covers why in Bonus Farming.
This calculator does one bonus at a time. The Ungambled app finds the hedges for every bonus you hold, grades each set for how square it looks, and pre-fills each sportsbook's bet slip — you place the bets at the odds shown and tap Save Bets. See it in the app →
Get Started →Bonus bet — a credit you bet with, where you keep the winnings but not the stake. Place it on a big underdog, hedge the other side with cash, and you keep a slice as cash whichever side wins. Aim to convert at least 65%.
No-sweat — you get a bonus bet back only if your bet loses. Hedge the qualifying bet, and on the losing side the returned bonus bet becomes your profit.
Bet-and-get — place a cash bet, receive a bonus bet. If the bonus comes only when your bet wins, the profit drops — toggle it and watch it move.
Profit boost — raises your payout by a set percentage. Hedge the boosted side and you bank the extra.
Early payout — pays your bet as a winner early if a condition hits (like your team leading by 17). Normally one side wins; but if the trigger fires and the game flips, you win both sides.
Basic hedge / arbitrage — no bonus at all. When two books disagree enough, bet both sides and lock a profit on price gap alone.
For education only. Not financial, legal, or tax advice. Figures assume you place both bets before the price moves; a moving line or a mistyped bet can change the result. Sports betting is legal in some U.S. states and in Ontario, and not elsewhere; you must meet the legal age (21+ in most U.S. states, 19+ in Ontario). If betting stops being fun, call or text 1-800-GAMBLER (U.S.) or ConnexOntario 1-866-531-2600.