The Capall Audit
The audit IS the proof. Every signal Capall has ever published — every BACK call and every LAY call — is settled here at Betfair SP. No filters. No cherry-picking. No rounding. Losing months appear exactly the same way as winning months.
If you want a fantasy, there are cheaper ones. If you want the maths, we built it in the open.
What this page tracks
Four walk-forward validated signals, each with live ROI, win rate, place rate, and confidence intervals since the method was frozen:
- Quiet Class HC — Handicap back signal. Fires when a quietly-classed runner has a large CR edge over the market price.
- Quiet Class EW — Each-way variant of the above, targeting place returns in larger fields.
- Quiet Class EXT — Extended-field each-way signal for races of 8+ runners.
- Lay-Fav Headgear — Lay signal against the market favourite when first-time headgear is fitted.
Every number is read live from the settled Betfair SP ledger and rebuilt nightly by the calibration cron. Cells below the minimum sample floor show "pending" rather than a misleading number.
What walk-forward means
Each signal was validated out-of-sample before it was ever published to users. The model was fitted on a rolling historical window, scored on the next slice, settled, then the window advanced. No future data leaked back into training. The "since launch" window on this page shows the live public record from the day each signal first fired — not a backtest, not a cherry-picked period.
BACK vs LAY
BACK and LAY signals are tracked separately and never blended. The three Quiet Class signals are BACK signals; Lay-Fav Headgear is a LAY signal. ROI is calculated at Betfair SP on 1-unit level stakes.