Stack profit boosts the way the house would.
Your book drops a 50% boost on a 3-leg parlay. Usually a trap. We search every supported leg combination, weight each by fair price, and hand you the one parlay that turns the promo into real +EV.
DraftKings·3 legs·50% boost·MLBEdit Add all 3 legs to slip +1685
+1003
+975
+893
+850
+795◆ Everything inside
The search engine for your book's best promo.
A dozen decisions compressed into one tap. Open the preset menu, solve, take it — or tweak every knob yourself.
Pre-built presets
We keep every current sportsbook promo wired up for you — DraftKings, FanDuel, BetMGM, Caesars, ESPN BET, bet365, Hard Rock, Fanatics, theScore — with the exact leg count, boost %, and book rules already configured. One tap picks the promo, we solve the parlay.
Custom build
Pick the book, leg count (2–10), boost %, and minimum combined odds. Your own promo, solved against the +EV feed.
Leg filters
Restrict the candidate pool by league, market, team, odds range, minimum EV, or today-only. Build a prop-only parlay, a moneyline-only parlay, or a one-league parlay.
Optimal leg finder
Searches every supported combination, weights each by fair price, and returns the parlay with the highest expected value inside your constraints.
Trash & replace
Don't like a leg? One tap removes it and auto-swaps the next-best candidate from the pool. The combined EV recalculates instantly.
Manual swap
Pick a specific alternate from the candidate pool. We swap it in, push the old leg back into the pool, and let you undo at any time.
Cross-book comparison
Same parlay, priced at every book that supports it. Which one actually pays you the most — even without the promo?
One-tap bet slip
Generates an SGP deep link that loads the exact parlay — all legs preselected — into the book's slip. Mobile and desktop variants handled.
Combined EV + Kelly
Fair probability combined across legs, boost applied, Kelly wager sized to your bankroll and risk tolerance.
Odds drift guard
We re-validate persisted builds on mount — if an odds shift changed any leg, we tell you what moved before you tap the slip.
SGP-aware
When every leg is on the same game, we solve the SGP through a correlated-pricing engine for the real price — not a naïve multiplication.
Fee-aware payouts
Prediction-market books charge a commission. We bake it into the posted payout so what you see is what you get.
◆ How it works
Promo in, parlay out. Under half a second.
Pick a promo
Tap one of our pre-built presets — every current sportsbook boost is already configured with the right leg count, boost %, and book rules. Or drop in a custom config.
Filter the pool
Leagues, markets, teams, odds range, min EV, today-only — narrow the universe to the legs you'll actually take.
Solve
We search every supported combination, weight each by fair price, and return the best-EV parlay in under half a second.
Swap or ship
Don't like a leg? Trash it, swap it, or take the whole thing. One tap opens the book with every selection preloaded.
The boost is bait. Let's take the hook.
Pro trial, 7 days, no credit card. Every preset, every filter, every book.