Chapter 8: Value Betting — Finding a Long-Term Edge

What is Value Betting?

Betting on a result where your estimated probability exceeds the bookmakers implied probability.

Value Formula:Expected = (Your Estimated Prob × Odds) - 1. If > 0 → positive expected value bet.

Example

PSG odds: 2.20 (implies 45.5%). You estimate 55%. Expected = (0.55 × 2.20) - 1 = +0.21. Positive value 21%!

How to Find Value?

Build your estimate: recent form (30%), H2H (15%), injuries (20%), home/away (15%), motivation (10%), conditions (10%).

A professional bettor never says "I win because I guess well" — they say "I win because I have a mathematical edge."