Henry Spiller
Fair A/E compares wins with a margin-stripped market expectation. Favourite-heavy samples — top yards, leading riders — naturally read a few points warm, so 1.05 means "beat the margin-free market read", not "the market underrates this by 5%".
Sends out around 60 runners a season, almost all on the flat, winning with 8% of them — a touch below the margin-free market read across the lifetime window (Fair A/E 0.95). Horses with headgear back on after a bare run strike at 13% (53 runs).
The record is strongest at Newcastle (AW) (20%, n=50), clear of the yard's 8.3% baseline. It is weakest at Southwell (AW) (0% over 36 runners) — the widest gap in the record. A horse having headgear put back on after a bare run has been a positive signal at 13.2% (n=53, Fair A/E 1.57), but debutants struggle at 3.9% (n=102, Fair A/E 1.08). Runners with a claiming rider up are the standout value angle: 9.7% strikes only just above baseline, but Fair A/E 1.17 and +52.21 to a £1 stake over 318 runners — a record the market has persistently underpriced. Stevie Donohoe rides 6% of the entries and edges the yard's average (10.8% vs 8.3%, A/E 1.22) — the partnership beats the margin-free market read. The yard also reads well off a 0-7-day break (21.2%, n=33). The record reads poorly on Good to Firm going — 3% over 169 runners, 5.3pts below the baseline. The stable star of the record: Herringswell (FR) — 6 wins from 25 runs for the yard. Seasonally, the yard fires Nov–Mar.
Yard patterns
the angles behind the record · vs 8.3% baselineEach tile is the record in that situation vs the 8.3% baseline — descriptive splits with the sample always shown, for you to weigh. Tiles under 30 runs render muted. Headgear figures use the true-first definition (first gear appearance in the captured career); returns are gear back on after a bare run. Claiming riders are runs where the booked rider carried a weight claim. Group / Graded covers pattern and listed races. The same beliefs, tested across every yard and every GB and Irish race since 2005: Racing myths.
Notable angles
vs their own baselineRecord by conditions
same window as headerRace type
Going
Courses
Class
Market position
Distance
By season
Handicaps
Field size
Rows below n=30 are shown faded — a small sample is a fact, not a trend. Every figure carries its N.
Horses trained
same window as header · most-raced firstWhen the yard fires
strike by month, lifetimeJockey bookings
same window · biggest samples firstCareer highlights
lifetime archive, 2015→Sires in the string
progeny record · win % by ground and tripThe record
latest 50 of 1,184 · newest firstThe latest 50 of 1,184 archived runners, newest first. The full record runs from 24 January 2015 to 9 February 2024.
Drawn from the whole archive (2005 onwards), so it can include runs outside the window the header statistics cover. Non-runners are not listed. A finish shown in letters is a non-completion (F fell · UR unseated · PU pulled up · BD brought down).
Quick answers
- What is Henry Spiller's strike rate?
- Henry Spiller has won 98 of 1,184 runners since 2008, a strike rate of 8.3% (as at 7 November 2026). Figures are computed from our own results archive.
- Which course does Henry Spiller do best at?
- Newcastle (AW) by strike rate: 10 wins from 50 runners (20%) since 2008. Read from the 15 courses with the most runners on the same basis, and only those with at least 30 — a small sample cannot top the list, and a rarely-visited course is not in the comparison.
- Who rides most for Henry Spiller?
- Stevie Donohoe, with 74 runners since 2008 — 6% of the total. That pairing has won 8 (10.8%).
- What is Henry Spiller's Fair A/E?
- 0.95, from 1,181 runners with a computed fair probability since 2008. Fair A/E compares actual wins with a margin-stripped market expectation, so 1.00 is par: above it the wins came at bigger prices than the margin-free market implied, below it they did not.