Positive EV
True devigging for mathematically +EV bets
- True devig methods
- Kelly criterion stakes
- Custom models

Why Positive EV
What Positive EV does for you
Find positive expected value bets using true devigging methods that require both sides of the market. Pinnacle is the default devig source, and you can switch to Circa, BetOnline, exchanges, prediction markets, or any sportsbook, or build a custom weighted model. Set your bankroll, Kelly criterion risk tolerance, devig method, and boost filters to get a recommended stake for every play.
True devigging with real fair odds
Positive EV devigs both sides of a sharp market to calculate fair odds, then ranks every opportunity by EV % with the best book, sharp price, fair odds, and a recommended stake.
Advanced settings & filters
Set min/max EV thresholds, choose worst-case or best-case EV, pick a devig method (Power, Multiplicative, Additive, Probit), and require minimum books per side and liquidity.
Full odds comparison
Expand any play to see over and under odds across every tracked sportsbook, with limit and line-movement indicators so you place at the right book at the right time.
Custom models
Choose which sharp books form your fair-odds source, weight their contributions, set min books required, and filter by sport and market. Run a preset or build your own.
How it works
Positive EV in 3 steps
- 1
Choose your devig source
Use the default Pinnacle devig, switch to another sharp book, exchange, or prediction market, or run a custom model.
- 2
Configure & filter
Set bankroll, Kelly criterion %, devig method, EV thresholds, liquidity minimums, and boost filters to match your strategy.
- 3
Place & track
Place at the best book through deeplinks, save to My Slips for parlay building, or share with friends.
FAQ
Common questions
Quick answers about Positive EV.
What makes a bet +EV?
A bet is +EV when the sportsbook price is better than the fair odds. We estimate fair odds by devigging both sides of the market from a sharp source like Pinnacle. It is an estimate of value over time, not a guarantee on any single bet.
How is this different from Soft Lines?
Soft Lines works on one-way markets (like first TD scorer) where only one side is offered. Positive EV requires both sides of a bet so it can devig and calculate fair odds, which gives a more precise EV figure for two-way markets.
What devig methods are available?
Power, Multiplicative, Additive, and Probit. You can also choose between worst-case and best-case EV calculations depending on your risk preference.
Which plan do I need?
Positive EV is included with Grinder and Syndicate, including live markets and custom models. Free and Scout accounts see a limited preview.
How does Kelly criterion staking work?
Enter your bankroll and choose a Kelly percentage (10%, 25%, 50%, 100%, or custom). The tool recommends a stake for each play based on the size of the edge and your risk tolerance.
What is the boost filter?
If a sportsbook offers a profit boost (for example 30%), enable the boost filter and it adjusts the EV % and recommended stake for the boosted payout, so you can see whether the boosted bet is +EV.
Related tools
All toolsPut Positive EV to work
Positive EV is included with Grinder and above. Start free and upgrade when you're ready.