https://trapmetrics.com/learn/Learn articles and news from TrapMetrics: how the ratings are built, what we measured, and how to test a system honestly.en-gbhttps://trapmetrics.com/learn/ratings-and-probabilities/https://trapmetrics.com/learn/ratings-and-probabilities/Fri, 11 Sep 2026 09:00:00 +0100What a rating says about a runner, what a probability says about uncertainty, and why a 30% chance still leaves 70% for the rest of the field.https://trapmetrics.com/learn/reading-the-evidence/https://trapmetrics.com/learn/reading-the-evidence/Fri, 11 Sep 2026 09:00:00 +0100When the prediction existed, what the denominator is, whether the chances are calibrated, and why winning more often is not the same as making money.https://trapmetrics.com/learn/understanding-trap-bias/https://trapmetrics.com/learn/understanding-trap-bias/Fri, 11 Sep 2026 09:00:00 +0100What sits under a trap win percentage: the sample, the window, the fair share and whether the pattern survives a period that was not used to find it.https://trapmetrics.com/news/september-evidence-update/https://trapmetrics.com/news/september-evidence-update/Fri, 11 Sep 2026 09:00:00 +0100This month's snapshot of the settled record: the top-pick comparison with Timeform on 13,018 held-out races, the straight-forecast study, and one number we corrected.https://trapmetrics.com/learn/how-we-rate-a-race/https://trapmetrics.com/learn/how-we-rate-a-race/Wed, 09 Sep 2026 09:00:00 +0100The unique elements behind a TrapMetrics race page, in plain English: point-in-time features, a calibrated chance, the TMR scale, measured going, track geometry, selection classes and the consensus forecast.https://trapmetrics.com/learn/the-system-builder/https://trapmetrics.com/learn/the-system-builder/Wed, 09 Sep 2026 09:00:00 +0100Sixty-four elements, five years of results, and a back-tester built to refuse to flatter you: holdout, walk-forward, intervals, Trim, Frontier, staking, and no Goal Seek by design.https://trapmetrics.com/learn/timeform-racing-post-and-us/https://trapmetrics.com/learn/timeform-racing-post-and-us/Wed, 09 Sep 2026 09:00:00 +0100We use the professional forecasts every day and we measured ourselves against them. The rating beats the Timeform forecast on held-out racing; the market beats everyone; the blend of all three lands the most forecasts. All of it is published.https://trapmetrics.com/learn/what-trapmetrics-is/https://trapmetrics.com/learn/what-trapmetrics-is/Wed, 09 Sep 2026 09:00:00 +0100A calibrated probability engine for UK and Irish greyhound racing, published every morning with its own record attached.