William Carson
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%".
Rides around 410 times a season, almost all on the flat, winning on 7% of them — a touch below the margin-free market read across five seasons (Fair A/E 0.90). Riding last-time-out winners the record reads 17% (155 rides).
Rides on last-time-out winners have been a positive signal at 17.4% (n=155, Fair A/E 1.02), but horses returning fresh after 61+ days have been a poor signal at 2.5% (n=284, Fair A/E 0.56). The market has consistently overbet first rides on a horse: 3.5% strike, Fair A/E 0.65 and −410.50 to a £1 stake over 594 rides — those runners underperform what the price implies. Tony Carroll supplies 30% of the rides and edges the rider's average (10.1% vs 7.3%, A/E 1.08) — the partnership beats the margin-free market read. The rider also reads well on Heavy going (19.4%, n=31). The record reads poorly off a break of 180+ days — 1.1% over 91 rides, 6.2pts below the baseline. 6 Group and Graded wins sit in the archive record — the biggest prize the rider has landed: the John Smith's Ayr Gold Cup Heritage Handicap at Ayr (Sep 2008, £93,465). The standout partner of the record: The Craftymaster (GB) — 9 wins from 28 rides together.
Riding patterns
the angles behind the record · vs 7.3% baselineEach tile is the record in that situation vs the 7.3% baseline — descriptive splits with the sample always shown, not tips. Tiles under 30 runs render muted. First rides are the first captured pairing of horse and rider; last-time-out winners are horses whose previous captured run was a win; claiming rides are runs where the rider carried a weight claim. Group / Graded covers pattern and listed races.
Notable angles
vs their own baselineRecord by conditions
same window as headerGoing
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 ridden
same window as header · most-raced firstCurrent form
significance-gatedLast 14 days
Small sampleBy month
strike by month, 5 seasonsRiding for
same window · biggest samples firstCareer highlights
lifetime archive, 2005→Sires of the horses ridden
progeny record · win % by ground and tripThe record
latest 50 of 8,659 · newest firstThe latest 50 of 8,659 archived rides, newest first. The full record runs from 13 August 2005 to 21 October 2026.
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 William Carson's strike rate?
- William Carson has won 148 of 2,032 rides since 2022, a strike rate of 7.3% (as at 23 October 2026). Figures are computed from our own results archive.
- Which course does William Carson do best at?
- Epsom by strike rate: 4 wins from 31 rides (12.9%) since 2022. Read from the 15 courses with the most rides 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.
- Which yard does William Carson ride most for?
- Tony Carroll, with 603 rides since 2022 — 30% of the total. That pairing has won 61 (10.1%).
- Is William Carson in form?
- Too few rides in the last 14 days to read — 9 rides, which is not a sample we will draw a conclusion from.
- What is William Carson's Fair A/E?
- 0.90, from 2,017 rides with a computed fair probability since 2022. 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.