Betting analytics, without the marketing

How sports markets are priced, how to tell a real edge from variance, and how to judge whether a signal service has a model behind it. Written by the team that built the SixAlgo six-layer engine.

Fundamentals

• Fundamentals
  Value betting explained: how to find a real edge in sports odds
  Converting odds into implied probability, stripping out the bookmaker's margin, calculating expected value, and why a correct bet often loses.
• Measurement
  Closing line value: the only metric that proves an edge early
  Why CLV settles the skill-or-luck question in dozens of bets while profit needs thousands — with the formula and how to read your own numbers.
• Risk
  Bankroll management: flat staking vs the Kelly criterion
  Why stake size destroys more winning systems than bad picks do, and how flat, fractional Kelly and full Kelly actually compare.

Market structure

• Market structure
  How bookmakers make money: the overround explained
  The margin baked into every price, how to calculate it in ten seconds, and why accumulators are the worst value on the board.
• Markets
  Asian handicap explained: every line from 0 to −1.5
  What each line pays, when stakes are refunded, and how quarter lines split your bet across two handicaps at once.
• Markets
  Both Teams To Score: how the market is actually priced
  How independent scoring probabilities combine, why correlation breaks the naive maths, and where BTTS and Over 2.5 diverge.
• Metrics
  Expected goals (xG) for bettors: what it does and doesn't tell you
  How xG is built, why providers disagree on the same shot, and the four mistakes bettors make reading it.

Due diligence

• Operations
  Why bookmakers limit winning accounts — and what to do
  Profit is a weak signal. What risk systems actually watch, why appealing never works, and how bettors respond.
• Due diligence
  How to spot a fake tipster: 9 warning signs before you pay
  Deleted losses, odds inflation, implausible strike rates and screenshot evidence — plus four questions that settle it in five minutes.
• Buyer's guide
  How to evaluate an AI betting signal service: a 7-point checklist
  Signal volume, closing line value, sample size and drawdown — the tests that separate a genuine model from AI as a marketing word.