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Trainer profile

J Merienne

160 runners in the last 5 seasons · 49 individual horses
As at 20 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner 6 days ago
from 1 Jan 2022
9–160
Wins / Runs
5.6%
Strike rate
n=160
38 (24%)
Placed
0.79
n=160 · 0.64 incl. margin
−67.20
£1 level stake
n=160 at SP · −42.0%
£404k
Prize money (window)
Strike by season
9.8%
KTB Yard Profile

Sends out around 30 runners a season, across both codes, winning with 6% of them — a touch below the margin-free market read across five seasons (Fair A/E 0.79).

Deterministic profile computed from 160 archived runs (last 5 seasons) · updated 20 Oct 2026
The read

The record is strongest at Deauville (FR) (8.8%, n=34), clear of the yard's 5.6% baseline. It is weakest at Auteuil (FR) (2.2% over 46 runners) — the largest sample in the record, and the widest gap. A horse in first-time headgear has been a poor signal at 0% (n=30, Fair A/E 0.00). The yard also reads well over 1m2f – 1m4f (16.7%, n=30). The record reads poorly over 1m – 1m1f — 0% over 37 runners, 5.6pts below the baseline. 2 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Prix Violon II at Auteuil (FR) (Sep 2019, £42,568). The stable star of the record: Good Deal (FR) — 10 wins from 48 runs for the yard.

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

Yard patterns

the angles behind the record · vs 5.6% baseline
Fresh · 61+ days off
2.6%−3.0
n=39 · A/E 0.40 · £1 −25.70
New recruits · first run for the yard
0%−5.6
n=8 · A/E 0.00 · £1 −8.00
Debutants · first career start
2.7%−2.9
n=37 · A/E 0.66 · £1 −29.70
First-time headgear · true-first definition
0%−5.6
n=30 · A/E 0.00 · £1 −30.00
When favourite
0%
n=10 · A/E 0.00 · £1 −10.00
Claiming riders · a claimer in the saddle
0%−5.6
n=44 · A/E 0.00 · £1 −44.00
Group / Graded races · pattern & listed
0%−5.6
n=17 · A/E 0.00 · £1 −17.00

Each tile is the record in that situation vs the 5.6% baseline — descriptive splits with the sample always shown, not tips. 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.

Notable angles

vs their own baseline
Over 1m2f – 1m4f 16.7% vs 5.6% · n=30
With claiming riders up 0% vs 5.6% · n=44
Over 1m – 1m1f 0% vs 5.6% · n=37
With first-time headgear 0% vs 5.6% · n=30
At Auteuil (FR) 2.2% vs 5.6% · n=46
At Deauville (FR) 8.8% vs 5.6% · n=34
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 80 3 3.8% −40.70
Flat 74 6 8.1% −20.50
Chase 6 0 0% −6.00

Going

GoingRWSR£1
Soft 65 2 3.1% −51.70
Heavy 38 3 7.9% −1.50
Standard (AW) 34 3 8.8% −10.00
Good to Soft 16 1 6.3% +3.00
Good 7 0 0% −7.00

Courses

CourseRWSR£1
Auteuil (FR) 46 1 2.2% −20.00
Deauville (FR) 34 3 8.8% −10.00
Compiegne (FR) 17 0 0% −17.00
Longchamp (FR) 8 0 0% −8.00
Le Lion-D'Angers (FR) 6 0 0% −6.00
Craon (FR) 6 3 50% +10.50
Cagnes-Sur-Mer (FR) 6 1 16.7% +1.30
Chantilly (FR) 6 0 0% −6.00
Saint-Malo (FR) 6 0 0% −6.00
Saint-Cloud (FR) 5 0 0% −5.00
Fontainebleau (FR) 4 0 0% −4.00
Les Sables-d'Olonne (FR) 4 1 25% +15.00
Senonnes-Pouance (FR) 3 0 0% −3.00
Clairefontaine (FR) 3 0 0% −3.00
Vichy (FR) 2 0 0% −2.00

Class

ClassRWSR£1
Class 4 18 3 16.7% −2.50
Class 1 17 0 0% −17.00
Class 3 6 0 0% −6.00

Market position

In the bettingRWSRA/E£1
Favourite 10 0 0% 0.00 −10.00
2nd–3rd fav 22 5 22.7% 1.50 +5.20
4th–6th fav 40 1 2.5% 0.33 −32.70
7th+ in betting 88 3 3.4% 1.19 −29.70
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.

Horses trained

same window as header · most-raced first
HorseRWPlLast ran
Bella Ciao (FR) 19 2 7 7 Oct 26
Iban Roque (FR) 13 0 7 11 Nov 25
Galiway D'Ange (FR) 10 2 3 22 Sep 26
Dahariz (FR) 9 1 2 13 Oct 26
April Flower (FR) 9 1 5 12 Oct 26
Grand Balcon (FR)from J-C Rouget · then J Carayon 8 0 2 9 Jun 24
Clo Des Flos (FR) 7 0 1 4 Sep 26
Pyravol Laujac (FR) 6 0 0 14 Oct 26
Joyeuse Roque (FR) 6 0 3 8 Sep 26
Happy Roque (FR) 6 0 1 17 Jun 23
Huntique (FR) 4 1 1 13 Oct 26
Mimetique (FR) 4 1 1 22 Apr 25
All 49 horses 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

Of the 49 horses listed, 9 arrived from another yard in our archive, most often from S Dehez (2); 40 had their first archived run for this yard.

8 have since run for another yard, most often for C Lecrivain (2) and J Carayon (2); 41 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
1 from 7
Only 7 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
00700005116297
Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Jockey bookings

same window · biggest samples first
RiderRWSR£1
Dylan Salmon 27 0 0% −27.00
Mme Laura Poggionovo 13 2 15.4% +12.00
Felix De Giles 9 1 11.1% +17.00
P Remoue 7 0 0% −7.00
Axel Lepage 7 0 0% −7.00
James Reveley 6 0 0% −6.00
Hugo Lebouc 5 0 0% −5.00
Theo Bachelot 5 0 0% −5.00
Maxime Behocaray 4 0 0% −4.00
Geoffrey-Gilles Vibert 4 0 0% −4.00
Benoit Claudic 4 1 25% +3.30
Sebastien Just 3 0 0% −3.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2005→
43
Archived wins
2
Pattern / graded wins
£1.38m
Prize money
2014
Best season · 10 wins
In our archive from its very first year (2005), so this career almost certainly began earlier than our record does. The figures above count 2005 onwards only — what the archive holds, not a full-career total. This card is the full archive census (2005→); the statistics in the header aggregate from 2008 — the floor that guarantees every horse a complete captured career — so this card can legitimately show more wins than the header.
Vic Royal (FR) — Prix Violon II (Chase) (Listed Handicap) (5yo+) (Turf) Auteuil (FR) · Sep 2019 · Listed
£42,568
Karnat (FR) — Prix Beugnot (Hurdle) (Listed Handicap) (5yo+) (Turf) Enghien (FR) · Feb 2014 · Listed
£39,375
Chateau La Barre (FR) — Prix de Marsan (Conditions Hurdle) (Turf) Auteuil (FR) · Mar 2026
£24,000

Sires in the string

progeny record · win % by ground and trip
Gemix (FR) 10.3% · 3–29
Progeny have won 10% of 717 runs since 2008 (122 horses).
Bathyrhon (GER) 0% · 0–15
Progeny have won 12.3% of 1,165 runs since 2008 (185 horses).
Bow Creek (IRE) 9.1% · 1–11
Progeny have won 6.9% of 347 runs since 2008 (37 horses).
Clovis Du Berlais (FR) 0% · 0–10
Progeny have won 9.4% of 754 runs since 2008 (111 horses). Strongest on Heavy going: 12.6% from 151. Weakest on Good to Soft going: 5.7% from 140.
Galiway (GB) 20% · 2–10
Progeny have won 11.3% of 1,692 runs since 2008 (282 horses). Strongest on Good going: 15.7% from 261. Weakest on Standard (AW) going: 7.8% from 383. Strongest over 1m5f – 2m (all codes): 18.8% from 223. Weakest over 1m – 1m1f (all codes): 5.5% from 474.
Almanzor (FR) 11.1% · 1–9
Progeny have won 9.7% of 2,089 runs since 2008 (282 horses). Strongest on Good to Firm going: 16.2% from 154. Weakest on Heavy going: 4.8% from 145. Strongest over 1m5f – 2m (all codes): 13% from 300.
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 20 Oct 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 499 · newest first

The latest 50 of 499 archived runners, newest first. The full record runs from 3 October 2005 to 14 October 2026.

DateCourseHorseRaceFinishSP
19 Sep 26 Senonnes-Pouance (FR) Dahariz (FR)J: Mme Laura Poggionovo Prix Du ChateauClass 4 · 10.5f · Good · 12 ran 11th 15/2
05 Sep 26 Craon (FR) Bella Ciao (FR)J: Leo-Paul Brechet Prix # Race And CareClass 4 · 11f · Heavy · 16 ran 1st 7/2

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 Merienne's strike rate?
J Merienne has won 9 of 160 runners since 2022, a strike rate of 5.6% (as at 20 October 2026). Figures are computed from our own results archive.
Which course does J Merienne do best at?
Deauville (FR) by strike rate: 3 wins from 34 runners (8.8%) 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 J Merienne in form?
Too few runners in the last 14 days to read — 7 runners, which is not a sample we will draw a conclusion from.
What is J Merienne's Fair A/E?
0.79, from 160 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 20 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).