In this guide, you’ll learn how the tiny EV+ badge can turn hours of line shopping into seconds and help you find Positive EV bets that grow your bankroll over time.
We’ll walk you through what the badge means, how the tool strips vig and exposes mispriced lines, how to size bets using Kelly, and concrete examples you can act on today.
How to Find and Use Positive EV Bets with the EV+ Badge
Why the EV+ Badge Matters
The simplest truth is this: most bettors scroll past positive ev bets and leave money on the table. The EV+ badge highlights when a market’s price—after stripping sportsbook vig and comparing sharp books like Pinnacle—suggests you’re getting an edge. You don’t need to manually calculate expected value every time; the badge surfaces opportunities in seconds so you can focus on staking and execution.
How Outlier Calculates Positive EV
When you click into a play you’ll see an expected value box with a “more details” option. That detail view shows:
Vig (the sportsbook “juice” built into odds)
Different devig methods (multiplicative and others)
Width (how far books disagree)
Which sharp books were used as reference (Pinnacle, Circa, Bookmaker)
Vig is just the extra built-in margin sportsbooks add to be profitable. For example, a fair coin should be +100 but sportsbooks often price even money around -110 — that extra $1 is VIG. Outlier “devigs” the books to find the fair implied probability. When a soft book is offering odds that pay significantly better than Pinnacle (a sharp reference), that difference can produce positive ev bets.
Width, Methods, and Why Multiplicative Is Popular
Width is the range between book prices. Narrow width means books agree; wider width means there’s disagreement and possible edges. Outlier gives several devig calculations—some are conservative, some aggressive. The multiplicative method is commonly used because it tends to be more conservative and reliable for most bettors.
Real Examples You Can Replicate
Here are the examples I walk through so you can see the badge logic in action.
MLB Moneyline: A Yankees moneyline was -163 on Pinnacle versus -152 on a softer book. That 11-cent gap produced positive EV after devig.
NFL spread/moneyline: A Giants line showed a large width (e.g., +301 vs +275 across books), which created a positive EV play when compared to Pinnacle.
Player prop: Vladimir Guerrero under 1.5 total bases at DraftKings (-128) vs Pinnacle (-153) — a massive discrepancy that turned into a clear +EV opportunity.
Note: You can and should use multiple devig books for different types of sports and markets.
Those are concrete examples of how Positive EV bets pop up across markets: moneylines, spreads, and player props. You should scan for the badge, click more details, and then decide whether the EV and width fit your process.
How Much Should You Bet? Kelly Criterion and Practical Sizing
Finding positive ev bets is only half the battle — you must also size bets responsibly. Outlier includes Kelly sizing estimates. The full Kelly maximizes long-term growth but creates high variance. Most bettors prefer fractioned Kellys:
Beginner: 1/8 Kelly
Intermediate: 1/4 Kelly (my preference)
Advanced/aggressive: 1/2 or full Kelly (be ready for big swings)
Example math: if multiplicative shows a bet size of 0.12% of bankroll and your bankroll is $1,000, that’s roughly $1.20 (if you’re using a 0.0012 multiplier) — small but consistent positive ev bets compound over time. For larger EV opportunities (like the DraftKings/Pinnacle prop example), the fractioned-Kelly percentage can be much higher; that’s when you scale accordingly.
Step-by-Step Process to Start Hunting Positive EV Bets
Open Outlier and scan for the EV+ badge across markets.
Click the play and choose More Details to review devig method, width, and reference books.
Decide which devig weighting you trust (default is devig to Pinnacle; you can increase Pinnacle weight if you trust it more).
Set your Kelly fraction (start with 1/8 if new to EV betting).
Place the bet at the soft book offering the price shown and track CLV (closing line value).
Repeat, document results, and scale as your edge and confidence grow.
If you want to deepen your knowledge, read Outlier’s Positive EV introduction: https://outlier.bet/sports-betting-strategy/positive-ev-betting/part-1-introduction-to-positive-ev-betting/
For practical bankroll management and staking strategy, check this guide: https://outlier.bet/sports-betting-strategy/betting-intelligence/bankroll-management/
For improving line shopping skills visit: https://outlier.bet/sports-betting-strategy/betting-intelligence/how-to-level-up-your-line-shopping/
Tips to Avoid Common Mistakes
Don’t chase lines blindly—only act when the +EV badge and devig reasoning align with your process.
Use a fraction of Kelly to protect bankroll during variance.
Document bets and track closing line value (CLV) to ensure you’re truly beating the market: https://outlier.bet/sports-betting-strategy/positive-ev-betting/understanding-closing-line-value-sports-betting/
Watch player-prop house rules and market quirks before committing large stakes: https://outlier.bet/sports-betting-strategy/betting-intelligence/house-rules-for-player-props/
More Resources
FAQs
What exactly does the EV+ badge mean?
The EV+ badge means that after Outlier devigs the available books (typically versus a sharp book like Pinnacle) and compares prices, the resulting implied probability shows a long-term expected profit if you place the bet at the listed price and size it correctly.
How reliable are Positive EV bets flagged by the badge?
The badge highlights mathematically favorable situations based on devig and width. Reliability depends on market liquidity, book reliability, and accurate devig weighting. Use conservative devig settings and fractional Kelly if you want lower variance.
How should I size bets when using Positive EV bets?
Use the Kelly criterion as a guide but start with a fraction (1/8 to 1/4 Kelly) to reduce variance. Increase your fraction as you accumulate results and confidence in the edge.
Where do I find the most EV+ opportunities?
EV+ opportunities commonly appear where books disagree widely: niche player props, lower-liquidity markets, and mismatched soft books versus sharp references. Scan player props and moneylines, and pay attention to large width figures in Outlier’s more details view.
Final Thoughts
Positive EV bets are about slow, repeatable profits—not instant guarantees. By using the E+V badge, understanding devig and width, and sizing with a fractioned Kelly, you’re building a system that favors long-term growth over short-term luck. Start scanning for the badge, lean on the more details view, and let consistent positive ev bets build your bankroll.
Got questions or wins to share? DM us on socials or comment where you found the EV+ edges and tag Outlier when you cash them.