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Trainer profile

Augustin Adeline De Boisbrunet

201 runners in the last 5 seasons · 79 individual horses
As at 12 Nov 2026 · KTB archive: 2005–present, updated daily
Last runner 7 days ago 99% of runners over jumps
from 1 Jan 2022
18–201
Wins / Runs
9%
Strike rate
n=201
53 (26%)
Placed
0.97
n=197 · 0.79 incl. margin
−68.67
£1 level stake
n=199 at SP · −34.5%
£987k
Prize money (window)
Strike by season
5.9%
KTB Yard Profile

Sends out around 40 runners a season, almost all over hurdles and fences, winning with 9% of them — level with the margin-free market read across five seasons (Fair A/E 0.97). The edge shows sharpest with horses returning fresh: 13% off breaks of two months or more (76 runs).

Deterministic profile computed from 201 archived runs (last 5 seasons) · updated 12 Nov 2026
KTB at a glance Fresh horses: 13.2% Group/Graded: 11.4%
The read

Horses returning fresh after 61+ days have been a positive signal at 13.2% (n=76, Fair A/E 1.53), but debutants struggle at 1.6% (n=61, Fair A/E 0.00). The yard also reads well in Chase races (15.3%, n=85) and off a break of 180+ days (14.3%, n=35). The record reads poorly in Hurdle races — 3.5% over 114 runners, 5.5pts below the baseline. 7 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Prix Montgomery Handicap) at Auteuil (FR) (Oct 2017, £67,308).

Written from the figures on this page — every claim carries its sample. Descriptive, not a tip.

Yard patterns

the angles behind the record · vs 9% baseline
Fresh · 61+ days off
13.2%+4.2
n=76 · A/E 1.53 · £1 +11.60
New recruits · first run for the yard
0%−9.0
n=6 · A/E 0.00 · £1 −6.00
Debutants · first career start
1.6%−7.4
n=61 · A/E 0.00 · £1 −59.00
First-time headgear · true-first definition
1.6%−7.4
n=63 · A/E 0.00 · £1 −61.00
When favourite
35%
n=20 · A/E 1.30 · £1 +3.00
Claiming riders · a claimer in the saddle
4%−5.0
n=25 · A/E 0.31 · £1 −23.40
Group / Graded races · pattern & listed
11.4%+2.4
n=44 · A/E 1.45 · £1 −12.20

Each tile is the record in that situation vs the 9% 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 baseline
With Alain De Chitray 18.2% vs 9% · n=33
With first-time headgear 1.6% vs 9% · n=63
With debutants 1.6% vs 9% · n=61
In Chase races 15.3% vs 9% · n=85
In Hurdle races 3.5% vs 9% · n=114
Off a break of 180+ days 14.3% vs 9% · n=35
Descriptive splits ranked by divergence × sample — insight, not instruction. Every angle carries its N; nothing under 30 runs qualifies. Rows within 2pts of the baseline appear only when the market-relative read (Fair A/E) diverges, and show it.

Record by conditions

same window as header

Race type

TypeRWSR£1
Hurdle 114 4 3.5% −82.00
Chase 85 13 15.3% +13.73
Flat 2 1 50% −0.40

Going

GoingRWSR£1
Soft 106 10 9.4% −22.40
Heavy 86 8 9.3% −37.27
Good 5 0 0% −5.00
Good to Soft 4 0 0% −4.00

Courses

CourseRWSR£1
Auteuil (FR) 136 13 9.6% −28.40
Compiegne (FR) 23 2 8.7% −13.60
Bordeaux Le Bouscat (FR) 10 2 20% +3.33
Aix-Les-Bains (FR) 5 0 0% −5.00
Nancy (FR) 4 0 0% −3.00
Craon (FR) 4 0 0% −4.00
Pau (FR) 3 0 0% −3.00
Lignieres (FR) 3 0 0% −3.00
Dax (FR) 3 0 0% −3.00
La Teste De Buch (FR) 2 0 0% −2.00
Dieppe (FR) 2 0 0% −2.00
Fontainebleau (FR) 2 0 0% −2.00
Moulins (FR) 1 0 0% −1.00
Toulouse (FR) 1 0 0% −1.00
Clairefontaine (FR) 1 0 0% −1.00

Class

ClassRWSR£1
Class 1 46 6 13% −9.87
Class 3 11 0 0% −11.00
Class 4 5 0 0% −5.00
Class 2 3 0 0% −2.00
Class 5 1 0 0% −1.00

Market position

In the bettingRWSRA/E£1
Favourite 20 7 35% 1.30 +3.00
2nd–3rd fav 31 4 12.9% 0.94 −5.07
4th–6th fav 65 4 6.2% 0.80 −22.20
7th+ in betting 83 2 2.4% 0.68 −44.40
Fair A/E per band is the tell: near 1.00 the market had it priced right; well above, the wins came where the market didn't expect them.

Rows below n=30 are shown faded — a small sample is a fact, not a trend. Every figure carries its N.

Jumping record

completion over obstacles · same window as header
77.2% completed · 197 obstacle runners (chases & hurdles)
CodeRCompFURPUBDOth
Chase 84 77.4% 5 1 13 0 0
Hurdle 113 77% 5 5 15 0 1
Chases and hurdles only — bumpers have no obstacles, so completion is not a question there. F fell · UR unseated rider · PU pulled up · BD brought down · Oth covers refusals, slip-ups, run-outs and the rare disqualification. Non-runners are excluded throughout. Rows under n=30 are shown faded. A descriptive record, not a tip.

Horses trained

same window as header · most-raced first
HorseRWPlLast ran
Indivis (FR) 15 3 7 4 May 26
Fiction Du Berlais (FR) 14 1 5 27 Sep 25
Kop De Boulogne (FR) 10 0 2 17 May 26
Impressive Machin (FR) 9 2 4 19 Oct 24
Luzeraise (FR) 8 1 2 29 Oct 26
Jeu De Role (FR) 6 0 0 5 Nov 26
La Grillere (FR) 6 0 0 19 Oct 24
Joliland (FR) 6 0 3 15 Jun 24
Exupery (FR)from Gabriel Leenders · then Gregoire Juillet 6 0 1 19 Sep 23
Griffon D'Aubrelle (FR) 5 3 3 29 Oct 26
Starko (FR) 5 1 3 27 Jun 23
Innovation (FR) 5 2 3 19 Nov 22
Showing the 60 most-raced of the 79 horses sent out in this window — each ran at least 1 time. Horses with fewer runs aren't listed; search finds any horse since 2005. 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

Of the 60 horses listed, 3 arrived from another yard in our archive; 57 had their first archived run for this yard.

7 have since run for another yard; 53 have 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.

Current form

significance-gated

Last 14 days

Small sample
0 from 3
Only 3 runners in the last 14 days — too few to read against the baseline (gate: n≥15). The card states the sample and stays neutral.

When the yard fires

strike by month, 5 seasons
JFMAMJJASOND
080518170·91300
A jumps yard: the season runs Oct–Apr. Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Jockey bookings

same window · biggest samples first
Go-to riderAlain De Chitray
16% of all rides
18.2% SR · A/E 2.29
RiderRWSR£1
Alain De Chitray 33 6 18.2% +30.40
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2014→
38
Archived wins
7
Pattern / graded wins
£2.05m
Prize money
2015
Best season · 8 wins
Le Toiny (FR) — Prix Montgomery (Chase) Handicap) (5yo+) (Turf) Auteuil (FR) · Oct 2017 · Grade 3
£67,308
Indivis (FR) — Prix Violon II (Chase) (Listed Handicap) (5yo+) (Turf) Auteuil (FR) · Sep 2024 · Listed
£48,000
Fiction Du Berlais (FR) — Prix Hardatit (Hurdle) (Listed Handicap) (5yo+) (Turf) Auteuil (FR) · May 2025 · Listed
£40,909

Sires in the string

progeny record · win % by ground and trip
Coastal Path (GB) 15.8% · 3–19
Progeny have won 12.8% of 2,218 runs since 2014 (247 horses). Strongest over 1m5f – 2m (all codes): 16.7% from 502. Weakest over 2m5f – 3m (all codes): 7.1% from 495.
Balko (FR) 33.3% · 6–18
Progeny have won 12.7% of 2,667 runs since 2011 (297 horses).
Gris De Gris (IRE) 12.5% · 2–16
Progeny have won 10.2% of 1,073 runs since 2014 (142 horses).
Masked Marvel (GB) 6.7% · 1–15
Progeny have won 15.4% of 1,651 runs since 2019 (270 horses). Strongest on Good to Soft going: 19.8% from 293.
Choeur Du Nord (FR) 7.7% · 1–13
Progeny have won 13.7% of 809 runs since 2020 (143 horses). Strongest over 1m5f – 2m (all codes): 18.3% from 120.
Cokoriko (FR) 0% · 0–12
Progeny have won 13.1% of 2,324 runs since 2017 (383 horses).
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 12 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

latest 50 of 551 · newest first

The latest 50 of 551 archived runners, newest first. The full record runs from 17 September 2014 to 5 November 2026.

DateCourseHorseRaceFinishSP
17 Oct 26 Auteuil (FR) Jeu De Role (FR)J: Lucas Zuliani Prix Ferdinand RiantClass 2 · 22f · Heavy · 9 ran 7th 22/1
11 Oct 26 Nancy (FR) Monsieur Hamaj (FR)J: Edgar Labaisse Prix Du Pont MoujaClass 2 · 25f · Soft · 5 ran 2nd —

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 Augustin Adeline De Boisbrunet's strike rate?
Augustin Adeline De Boisbrunet has won 18 of 201 runners since 2022, a strike rate of 9% (as at 12 November 2026). Figures are computed from our own results archive.
Which course does Augustin Adeline De Boisbrunet do best at?
Auteuil (FR) by strike rate: 13 wins from 136 runners (9.6%) since 2022. 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.
Is Augustin Adeline De Boisbrunet in form?
Too few runners in the last 14 days to read — 3 runners, which is not a sample we will draw a conclusion from.
What is Augustin Adeline De Boisbrunet's Fair A/E?
0.97, from 197 runners 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.
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 12 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).