The Master Rating gives every runner in every GB & Irish race a win probability and a fair price.
It is built from form, race times, in-running comments, trainer form, draw, pedigree and past market history —
it never looks at today's prices, so it's an independent second opinion to set against the exchange.
This page shows how accurate those probabilities have been. No tips, no cherry-picking: every rated race counts.
Live record since 1 Oct 2026
Updated automatically as results come in.
Walk-forward test
Mar–Sep 2026. Each month was rated by a model trained only on races before it — no hindsight.
How to read this
- Calibration is the point. When Master says 25%, those horses should win about 25% of the time. If the gold bars track the grey ones, the probabilities can be trusted — and a trusted probability is what lets you judge whether an exchange price is too big or too small.
- The favourite wins more often than our top pick — by design. Master doesn't use today's market. Its job isn't to find the favourite; it's to price every runner independently, so you can see where it disagrees with the market.
- Top pick and top-3 show how often the winner was Master's highest-rated horse, and how often it was one of its top three. "Random" is what picking a runner at random would achieve in the same races.
- The live record starts small and grows every racing day. The walk-forward test covers thousands of races; the live record is the ongoing proof.
- Accuracy isn't profit. A well-calibrated rating doesn't make backing its top pick profitable — the market is sharp. It's a tool for comparing your own view, and the market's, against an independent number.
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