Skip to content
Trainer profile

J Dubois

1 runner in the lifetime window
As at 9 Nov 2026 · KTB archive: 2005–present, updated daily
Last runner Jun 2023 100% of runners on the flat
Last 5 seasons Lifetime (2023→)
from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it
1–1
Wins / Runs
100%
Strike rate
n=1
1 (100%)
Placed
—
Fair A/E
n=0 · — incl. margin
—
£1 level stake
n=0 at SP · —
£3,319
Prize money (window)

Small sample — fewer than 30 runs in this window. Read the Ns before the percentages.

Yard patterns

the angles behind the record · vs 100% baseline
Debutants · first career start
100%+0.0
n=1 · A/E — · £1 —
Claiming riders · a claimer in the saddle
100%+0.0
n=1 · A/E — · £1 —

Each tile is the record in that situation vs the 100% 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

This filter uses derived form angles computed for 58.6% of the archive so far (as at 9 Nov 2026); the sample will grow as sequencing completes.

Horses trained

same window as header · most-raced first
HorseRWPlLast ran
Martinroyal (FR) 1 1 1 14 Jun 23
The one horse sent out in this window. Runs, wins and places only: a strike rate or a return on a handful of runs is noise, so none is quoted per horse — each horse's full record is on its own page.
Where they came from · where they went next

The one horse listed had its first archived run for this yard.

It has no later run for another yard in our archive.

Read from each listed horse's whole archived career (2005 onwards), not only this window, and counted over the horses listed above, not the whole string. “First archived run” means our archive holds nothing earlier, not that the horse was unraced. A horse with no later run elsewhere may still be here, be off the track, or have run somewhere our archive does not cover — none of that is asserted.

Jockey bookings

same window · biggest samples first
RiderRWSR£1
Jordan Delaunay 1 1 100% —
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2023→
1
Archived wins
£3,319
Prize money
2023
Best season · 1 win
Martinroyal (FR) — Prix Equidarmor (Claimer) (Turf) Langon (FR) · Jun 2023
£3,319
Notable horses
Martinroyal (FR)

Sires in the string

progeny record · win % by ground and trip
Martinborough (JPN) 100% · 1–1
Progeny have won 12% of 665 runs since 2020 (79 horses). Strongest over 2m1f – 2m4f (all codes): 16.7% from 162.
Top line: the yard's own record with each sire's runners (win %, wins–runs), same window as the header; faded under 30 runs. Beneath it: every run by that sire's progeny in our archive since 2008, as at 9 Nov 2026 — what they have done, not a forecast. A going or a distance is named only where at least 100 progeny runs sit 3 or more points from the sire's own win rate. Distance bands cover Flat and jumps together.

The record

the one archived run

One runner in our archive: Martinroyal (FR) won the Prix Equidarmor at Langon (FR) on 14 June 2023 (3 ran), ridden by Jordan Delaunay.

DateCourseHorseRaceFinishSP
14 Jun 23 Langon (FR) Martinroyal (FR)J: Jordan Delaunay Prix Equidarmor (Claimer) (Turf)9f · Good · 3 ran 1st —

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 J Dubois's strike rate?
J Dubois has won 1 of 1 runner since 2008, a strike rate of 100% (as at 9 November 2026). Figures are computed from our own results archive. A small sample — fewer than 30 runners, so read the count before the percentage.
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%". Three sample sizes are reported and never blended: runs (n), the ROI basis (n at SP), and the fair-A/E basis (n with a computed fair probability).

Strike rate is wins over all runs (n). ROI is £1 level stakes at SP over runs with a parseable price (n at SP). Fair A/E is wins over margin-stripped market expectation, over runs with a computed fair probability (n fair). The three Ns can legitimately differ and are always shown. Figures as at 9 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).