Sportsbooks and prediction markets bake a margin (the "vig") into every price. Paste the two sides of any market and see what the odds really imply — the fair, no-vig probability of each outcome. Read the math, not the narrative.
KalEdge's AI runs this math on thousands of markets every day and sends you the short list. Free to start.
If a market offers -150 / +130, those prices imply a 60.0% / 43.5% chance — which sums to 103.5%, not 100%. That extra 3.5% is the vig: the house's built-in margin. It makes both sides look more likely than they truly are.
To find the fair (no-vig) probability, you strip the vig by normalizing the two implied probabilities so they sum to 100%. The result is the market's honest estimate of each outcome — the number you should compare any model or opinion against.
An edge only exists when your estimate of an outcome is higher than its fair no-vig probability. Beat the no-vig line consistently and you have a real, provable edge — which is exactly what KalEdge's Scout does, and publishes, every day.