Kate O'Brien
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%".
Rode around 20 times a season, almost all on the flat, winning on 5% of them — beating the margin-free market read across the lifetime window (Fair A/E 1.05).
The rider also read well over 6f – 7f (10%, n=30) and on Soft going (8.6%, n=35). The record read poorly off a 15-30-day break — 0% over 33 rides, 5.4pts below the baseline.
Riding patterns
the angles behind the record · vs 5.4% baselineEach tile is the record in that situation vs the 5.4% 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
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 firstBy month
strike by month, lifetimeRiding for
same window · biggest samples firstCareer highlights
lifetime archive, 2010→Sires of the horses ridden
progeny record · win % by ground and tripThe record
latest 50 of 112 · newest firstThe latest 50 of 112 archived rides, newest first. The full record runs from 4 April 2010 to 4 August 2014.
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 Kate O'Brien's strike rate?
- Kate O'Brien has won 6 of 112 rides since 2008, a strike rate of 5.4% (as at 28 October 2026). Figures are computed from our own results archive.
- What is Kate O'Brien's Fair A/E?
- 1.05, from 111 rides 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.