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Evidence, decisions, and what changed afterward.
The official archive for EV Bet Engine research, decisions, and post-match validation. Articles are published here as the source of record.
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Development Journal #001 / 281 kinds.
The day we declined Sportmonks. A development journal on listing every data field EV Bet Engine needs — and arriving at 281.
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Waiting for price, switching markets and managing risk
The live execution record for Celtic vs Dundee: the 28-minute entry, half-time switch, 65-minute hedge and final ROI.
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Why expected dominance did not mean betting the score handicap
Why Celtic vs Dundee was priced through the corner markets rather than the score handicap, including structure, price, expected value and live-entry conditions.
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What Is Edge?
Learn what edge means in sports betting and how to calculate it. This guide covers the basic edge formula, percentage-point vs relative edge, the relationship with EV, estimation error, CLV, and the Kelly criterion.
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What Are Fair Odds?
Learn what fair odds mean in sports betting and how to calculate them. This guide covers converting odds into market probability, calculating the bookmaker margin (overround), removing the margin through normalisation, and how fair odds relate to expected value and edge.
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What Is Expected Value (EV)?
Learn what expected value (EV) means in sports betting, how to calculate it, why a high hit rate does not always translate into profit, and why positive-EV bets can still lose.
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World Cup Final review: Argentina had zero shots in 90 minutes.
Spain won after extra time, but regulation ended 0-0. The review tests the pre-match value thesis against a 15–0 advantage in shots and a 9–1 advantage in corners.
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World Cup Final: Spain vs Argentina — Spain’s defensive record or Messi’s final chapter?
Model diagnostics, probability adjustment and the case for Total Under 2.25 at +12.92% EV before kickoff.
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The main bet lost. The pre-match analysis still worked live.
France vs Spain: the complete record of ten bets and the live adjustments made after the primary pre-match bet failed.
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Written before the result: where the value was in France vs Spain.
The complete pre-match model, market-price comparison, entry conditions, and no-bet decisions published before kickoff.
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Three core probability models, verified against the full test suite.
Elo, Dixon–Coles and LightGBM verified end-to-end — 179 tests passing at 100% — plus the compatibility issue behind it and what comes next.
EV Bet Engine is the source of record. Other platforms are used only for distribution and discovery.