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Trainer profile

A Chaille-Chaille

606 runners in the last 5 seasons · 150 individual horses
As at 28 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner Sep 2025 100% of runners over jumps
from 1 Jan 2022
113–606
Wins / Runs
18.6%
Strike rate
n=606
249 (41%)
Placed
1.21
n=599 · 1.01 incl. margin
+30.20
£1 level stake
n=601 at SP · +5.0%
£7.87m
Prize money (window)
Strike by season
0%
KTB Yard Profile

Sends out around 120 runners a season, almost all over hurdles and fences, winning with 19% of them — beating the margin-free market read across five seasons (Fair A/E 1.21). With a claiming rider up the record reads 21% (116 runs).

Deterministic profile computed from 606 archived runs (last 5 seasons) · updated 28 Oct 2026
KTB at a glance Fires Oct–Nov Fresh horses: 18.8% 35.8% when favourite Gaetan Masure: 23.9% from 188 Claiming riders: 20.7% Sends off the favourite in 18% of races
The read

Debutants are the standout value angle: 19.3% strikes only just above baseline, but Fair A/E 1.43 and +36.10 to a £1 stake over 109 runners — a record the market has persistently underpriced. Gaetan Masure rides 31% of the entries and beats the yard's average (23.9% vs 18.6%, A/E 1.41) — the partnership beats the margin-free market read. The record reads poorly off a 8-14-day break — 6.1% over 33 runners, 12.5pts below the baseline. 175 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Gras Savoye Grand Steeple-Chase de Paris at Auteuil (FR) (May 2007, £243,243). The stable star of the record: Mid Dancer (FR) — 13 wins from 21 runs for the yard. Seasonally, the yard fires Oct–Nov.

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

Yard patterns

the angles behind the record · vs 18.6% baseline
Fresh · 61+ days off
18.8%+0.2
n=176 · A/E 1.26 · £1 +19.00
New recruits · first run for the yard
25%+6.4
n=4 · A/E 1.84 · £1 +7.70
Debutants · first career start
19.3%+0.7
n=109 · A/E 1.43 · £1 +36.10
First-time headgear · true-first definition
19%+0.4
n=116 · A/E 1.37 · £1 +31.60
When favourite
35.8%
n=109 · A/E 1.09 · £1 −18.10
Claiming riders · a claimer in the saddle
20.7%+2.1
n=116 · A/E 1.25 · £1 +13.90
Group / Graded races · pattern & listed
17.3%−1.3
n=271 · A/E 1.16 · £1 +6.80

Each tile is the record in that situation vs the 18.6% 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
On last-time-out winners 32.3% vs 18.6% · n=96
With David Gallon 8.7% vs 18.6% · n=103
Off a 8-14-day break 6.1% vs 18.6% · n=33
With Gaetan Masure 23.9% vs 18.6% · n=188
With Pierre Dubourg 24.4% vs 18.6% · n=78
With Quentin Gaignard 24.1% vs 18.6% · n=54
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 333 59 17.7% +24.70
Chase 271 54 19.9% +6.50
Flat 2 0 0% −1.00

Going

GoingRWSR£1
Heavy 340 71 20.9% +30.60
Soft 260 41 15.8% +0.40
Good to Soft 4 1 25% +0.20
Good 2 0 0% −1.00

Courses

CourseRWSR£1
Auteuil (FR) 437 79 18.1% +8.20
Compiegne (FR) 122 28 23% +41.70
Clairefontaine (FR) 12 2 16.7% +0.90
Pau (FR) 8 0 0% −8.00
Dieppe (FR) 4 0 0% −4.00
Cagnes-Sur-Mer (FR) 4 0 0% −4.00
Machecoul (FR) 2 0 0% —
Fontainebleau (FR) 2 0 0% −2.00
Strasbourg (FR) 2 1 50% +1.50
Nantes (FR) 2 1 50% −0.30
Le Lion-D'Angers (FR) 2 1 50% +2.20
Saint-Brieuc (FR) 1 0 0% —
Cluny (FR) 1 1 100% —
Ascot 1 0 0% −1.00
Granville-St Pair Sur Mer (FR) 1 0 0% —

Class

ClassRWSR£1
Class 1 272 47 17.3% +5.80

Market position

In the bettingRWSRA/E£1
Favourite 114 41 36% 1.11 −17.20
2nd–3rd fav 208 45 21.6% 1.29 +10.20
4th–6th fav 185 17 9.2% 1.04 −30.70
7th+ in betting 94 9 9.6% 2.08 +67.90
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
85.1% completed · 604 obstacle runners (chases & hurdles)
CodeRCompFURPUBDOth
Chase 271 79.3% 28 14 13 0 1
Hurdle 333 89.8% 16 4 14 0 0
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
Showly (FR) 20 0 6 8 Dec 24
Inedit De Ciergues (FR) 17 4 5 15 Jun 24
Ho La La Forez (FR) 16 3 6 8 Jun 24
Leon Du Berlais (FR) 11 1 7 24 Nov 24
Showing the 60 most-raced of the 150 horses sent out in this window — each ran at least 3 times. 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, 2 arrived from another yard in our archive; 58 had their first archived run for this yard.

30 have since run for another yard, most often for A Chaille-Chaille & F Pamart (24); 30 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.

When the yard fires

strike by month, 5 seasons
JFMAMJJASOND
0211618211620251423237
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 riderGaetan Masure
31% of all rides
23.9% SR · A/E 1.41
RiderRWSR£1
Gaetan Masure 188 45 23.9% +29.50
David Gallon 103 9 8.7% −47.90
Florent Bayle 82 12 14.6% +21.20
Pierre Dubourg 78 19 24.4% +42.80
Quentin Gaignard 54 13 24.1% +0.20
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2005→
459
Archived wins
175
Pattern / graded wins
£26.5m
Prize money
2024
Best season · 39 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.
Mid Dancer (FR) — Gras Savoye Grand Steeple-Chase de Paris Auteuil (FR) · May 2007 · Grade 1
£243,243
Zaiyad (IRE) — Grande Course de Haies d'Auteuil (Hurdle) Auteuil (FR) · Jun 2007 · Grade 1
£236,486
Grandeur Nature (FR) — Prix la Haye Jousselin (Chase) (5yo+) (Turf) Auteuil (FR) · Nov 2023 · Grade 1
£230,973

Sires in the string

progeny record · win % by ground and trip
Martaline (GB) 20.9% · 14–67
Progeny have won 14.2% of 7,345 runs since 2008 (723 horses). Weakest on Standard (AW) going: 9.4% from 128. Weakest over 1m – 1m1f (all codes): 10% from 120.
Kapgarde (FR) 7.8% · 4–51
Progeny have won 12.5% of 6,617 runs since 2008 (724 horses).
Doctor Dino (FR) 23.3% · 10–43
Progeny have won 16% of 3,191 runs since 2008 (490 horses). Strongest on Good going: 19.7% from 553. Weakest on Standard (AW) going: 9.5% from 211. Strongest over 1m5f – 2m (all codes): 19.8% from 692. Weakest over 1m – 1m1f (all codes): 8.7% from 138.
Shantou (USA) 14.3% · 4–28
Progeny have won 13.6% of 7,824 runs since 2008 (539 horses). Strongest on Good to Firm going: 20.3% from 158.
Beaumec De Houelle (FR) 18.5% · 5–27
Progeny have won 10.8% of 544 runs since 2008 (140 horses). Strongest over 1m5f – 2m (all codes): 14.8% from 149.
Spider Flight (FR) 4.2% · 1–24
Progeny have won 7% of 441 runs since 2008 (57 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 28 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 2,408 · newest first

The latest 50 of 2,408 archived runners, newest first. The full record runs from 29 January 2005 to 23 September 2025.

DateCourseHorseRaceFinishSP

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 A Chaille-Chaille's strike rate?
A Chaille-Chaille has won 113 of 606 runners since 2022, a strike rate of 18.6% (as at 28 October 2026). Figures are computed from our own results archive.
Which course does A Chaille-Chaille do best at?
Compiegne (FR) by strike rate: 28 wins from 122 runners (23%) 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.
Who rides most for A Chaille-Chaille?
Gaetan Masure, with 188 runners since 2022 — 31% of the total. That pairing has won 45 (23.9%).
What is A Chaille-Chaille's Fair A/E?
1.21, from 599 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 28 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).