If you're betting on sports and you don't understand expected value, you're flying blind. EV is the foundation of every profitable betting strategy -- and most bettors have never heard of it.
EV Example: Coin Flip at +110 Odds
If You Win (50%)
+$110
0.50 x $110 = $55
If You Lose (50%)
-$100
0.50 x $100 = $50
Make this bet 1,000 times and you'd expect ~$5,000 profit
EV in One Sentence
Expected value is the average amount you win or lose per bet if you made that same bet thousands of times.
A +EV bet means you expect to profit over time. A -EV bet means the house wins over time. Every bet in existence has an expected value, and that number tells you everything you need to know.
The Formula
EV = (Probability of Winning × Amount Won) - (Probability of Losing × Amount Lost)Example: A coin flip at +110 odds
- Probability of winning: 50%
- Win: $110 profit on a $100 bet
- Lose: $100
EV = (0.50 × $110) - (0.50 × $100)
EV = $55 - $50
EV = +$5 per betThat's a +$5 EV bet. If you could make this bet 1,000 times, you'd expect to profit about $5,000.
Why EV Matters More Than Win Rate
A bettor who wins 60% of their bets at -110 odds has a lower long-term profit than a bettor who wins 45% of their bets at +200 odds. Win rate means nothing without context.
What matters is: are you making +EV bets consistently?
If yes, the math guarantees long-term profit. If no, no amount of "hot streaks" will save you.
How the Vig Works
Team A
-110
Implied: 52.4%
Team B
-110
Implied: 52.4%
This is the vig. Every standard bet starts you in a hole. You need an edge to overcome it.
The House Edge
Every bet at a traditional sportsbook has a built-in house edge (the vig or juice). When a book offers -110 on both sides of a bet, they're charging roughly 4.5% in vig. That means the average bettor is making -EV bets on every single wager.
To overcome the vig, you need an edge. You need to identify bets where the true probability is higher than what the odds imply.
How SickFade Finds +EV Bets
SickFade compares odds across sportsbooks against sharp market data to identify mispriced lines. When a book offers +150 on a prop that should be +120, that's a +EV opportunity.
We calculate the edge percentage on every pick so you know exactly how much value you're getting. A 5% edge on a $100 bet means +$5 EV. Do that hundreds of times and the math works in your favor.
Variance vs. Expected Value
The green line is where math says you'll end up. The white line is what the ride actually looks like.
The Variance Problem
Even with +EV bets, you will lose money in the short term. That's variance. A +5% edge bet still loses more than it wins -- it just pays more when it hits.
This is why bankroll management matters. You need enough volume for the math to converge. A single +EV bet is not a guaranteed win. A thousand +EV bets approach a guaranteed profit.
Key Takeaways
- EV is the only metric that matters for long-term profitability.
- Win rate is misleading without knowing the odds.
- The vig makes most bets -EV -- you need an edge to overcome it.
- Variance is real -- don't judge results over small sample sizes.
- Volume is your friend -- the more +EV bets you place, the more reliably the math works.
Have questions? Join our Discord and ask the community.
Understanding EV is the difference between gambling and investing. Everything else builds on this foundation.