How accurate are our probabilities?

Our whole approach rests on one thing: when we say a horse has a 30% chance, it should win about 30% of the time. Here's the proof — measured against real results, published openly.

Probabilities highly accurate
±0.4pp
average gap between predicted and actual

Across 26,489 runners the model has assessed, its predicted win probabilities land within 0.4 percentage points of what actually happened, on average.

In plain terms: when we say 30%, horses win close to 30%. That's what makes the value calculations on the race page trustworthy — the probabilities are real.

Predicted chance vs actual win rate

Every horse the model assigns a probability to, grouped by predicted chance, compared to how often those horses actually won. The closer "Actual" is to "Predicted", the more trustworthy the number.

Predicted Chance Predicted Avg Actual Win Rate Difference Runners Accuracy
0–5% 3.2% 3.9% +0.7pp 5889
5–10% 7.4% 7.4% 0.0pp 9088
10–15% 12.2% 12.2% 0.0pp 5432
15–20% 17.1% 17.9% +0.8pp 2616
20–25% 22.3% 23.1% +0.8pp 1370
25–30% 27.4% 27.3% -0.1pp 730
30–35% 32.6% 31.4% -1.2pp 557
35%+ 42.3% 40.1% -2.2pp 807

pp = percentage points. Green = within 3pp · Amber = within 7pp · Red = needs attention. Based on 26,489 runners across 92 racing days.

Accuracy by race type

Whether the probabilities hold up across different kinds of race. Predicted is the model's average chance; actual is how often those horses won.

Flat Handicap
Predicted11.2%
Actual11.0%
Difference -0.2pp
13621 runners · see the races →
Novice / Maiden
Predicted11.7%
Actual12.1%
Difference +0.3pp
5751 runners · see the races →
Other
Predicted11.4%
Actual11.8%
Difference +0.4pp
3164 runners · see the races →
Jump Handicap
Predicted10.8%
Actual12.4%
Difference +1.6pp
2792 runners · see the races →
Group
Predicted12.1%
Actual11.8%
Difference -0.2pp
701 runners · see the races →
Listed
Predicted11.7%
Actual11.5%
Difference -0.2pp
460 runners · see the races →

Why we show you this

Most racing products show you their winners. We show you how accurate our numbers are — including where they're not perfect.

A well-calibrated probability is the foundation of finding value. If the model says a horse has a 25% chance and the market is offering odds that imply 15%, that gap is only meaningful if the 25% is real. This page is our evidence that it is — updated continuously from settled results.

If the numbers ever drift, you'll see it here first. That's the deal.

That record is published every day, wins and misses alike. Members get the same numbers on every UK and Irish race before it runs.

Founder members pay only £14.99 a month, locked for life, against £24.99 a month once the founder places go. Starts with 7 days free.

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