Every sportsbook line includes a hidden cost called the vig — it's the sportsbook's built-in profit margin. It's baked into every single odd, on every single game, across every sport. And it's why the house always wins over time if you're not paying attention.
Here's how it works: A fair coin flip should have both sides at +100 — each outcome has a 50% chance. But sportsbooks don't price it that way. They price it at -110 on both sides. That extra juice on both sides? That's the vig. You're paying for the privilege of betting.
The Reality: In the long run, paying the vig means you lose money even on 50-50 bets. Most bettors never see it because odds are designed to hide it. Bethics strips it out so you can see the real numbers.