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Trainer profile

S Kobayashi

416 runners in the last 5 seasons · 92 individual horses
As at 22 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner 2 days ago 100% of runners on the flat
Last 5 seasons Lifetime (2010→)
from 1 Jan 2022
24–416
Wins / Runs
5.8%
Strike rate
n=416
88 (21%)
Placed
0.87
Fair A/E
n=416 · 0.72 incl. margin
−159.90
£1 level stake
n=416 at SP · −38.4%
£915k
Prize money (window)
Strike by season
6.9%
KTB Yard Profile

Sends out around 80 runners a season, almost all on the flat, winning with 6% of them — a touch below the margin-free market read across five seasons (Fair A/E 0.87).

Deterministic profile computed from 416 archived runs (last 5 seasons) · updated 22 Oct 2026
KTB at a glance Mlle Laura Grosso: 7.4% from 54
The read

A horse in first-time headgear has been a poor signal at 0% (n=43, Fair A/E 0.00). Mlle Laura Grosso rides 13% of the entries and matches the yard's average almost exactly (7.4%, A/E 1.29) — the partnership beats the margin-free market read. The yard also reads well on Heavy going (14.3%, n=56). The record reads poorly on Good to Soft going — 1.9% over 104 runners, 3.9pts below the baseline. 7 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Prix de Flore at Saint-Cloud (FR) (Oct 2024, £34,783).

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

Yard patterns

the angles behind the record · vs 5.8% baseline
Fresh · 61+ days off
4.8%−1.0
n=124 · A/E 0.91 · £1 −69.10
New recruits · first run for the yard
0%−5.8
n=13 · A/E 0.00 · £1 −13.00
Debutants · first career start
3.1%−2.7
n=65 · A/E 0.51 · £1 −51.50
First-time headgear · true-first definition
0%−5.8
n=43 · A/E 0.00 · £1 −43.00
Headgear returns · back on after a bare run
0%−5.8
n=13 · A/E 0.00 · £1 −13.00
When favourite
30%
n=20 · A/E 1.28 · £1 +4.60
Claiming riders · a claimer in the saddle
3.9%−1.9
n=76 · A/E 0.65 · £1 −39.80
Group / Graded races · pattern & listed
4.8%−1.0
n=84 · A/E 1.01 · £1 +13.50

Each tile is the record in that situation vs the 5.8% 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 Heavy going 14.3% vs 5.8% · n=56
With M Grandin 14.3% vs 5.8% · n=35
With first-time headgear 0% vs 5.8% · n=43
With Pierre Bazire 0% vs 5.8% · n=37
On Good to Soft going 1.9% vs 5.8% · n=104
With Cristian Demuro 10.5% vs 5.8% · n=38
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

Going

GoingRWSR£1
Standard (AW) 108 4 3.7% −57.00
Good to Soft 104 2 1.9% −34.00
Soft 103 6 5.8% −52.90
Heavy 56 8 14.3% +6.10
Good 45 4 8.9% −22.10

Courses

CourseRWSR£1
Chantilly 120 4 3.3% −72.80
Saint-Cloud 111 10 9% −41.10
Longchamp (FR) 70 3 4.3% −42.00
Deauville (FR) 62 4 6.5% +27.00
Compiegne (FR) 15 1 6.7% −10.00
Toulouse (FR) 7 0 0% −7.00
Vichy (FR) 6 1 16.7% −4.20
Clairefontaine (FR) 5 0 0% −5.00
Lyon Parilly (FR) 3 0 0% −3.00
La Teste De Buch (FR) 2 1 50% +13.20
Craon (FR) 2 0 0% −2.00
Fontainebleau (FR) 2 0 0% −2.00
Cagnes-Sur-Mer (FR) 2 0 0% −2.00
Nantes (FR) 2 0 0% −2.00
Le Touquet (FR) 1 0 0% −1.00

Class

ClassRWSR£1
Class 1 85 4 4.7% +12.50
Class 2 7 0 0% −7.00
Class 3 7 0 0% −7.00

Market position

In the bettingRWSRA/E£1
Favourite 20 6 30% 1.28 +4.60
2nd–3rd fav 51 8 15.7% 1.11 −9.10
4th–6th fav 102 4 3.9% 0.54 −62.60
7th+ in betting 243 6 2.5% 0.72 −92.80
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
Black Lives Matter (FR)then M Nigge 26 1 4 26 Jun 24
Mononof (FR) 18 0 3 20 Oct 26
Meisho Velite (FR) 16 1 3 9 Oct 26
Raggio Bianco (FR) 14 0 2 12 Jan 24
Waldora (FR)from David Menuisier 13 1 2 22 Dec 25
Gran Habano (FR)then F Caenepeel-Legrand 11 1 1 14 Sep 25
Showna (FR) 10 2 4 4 Oct 26
Short Final (FR)from J-V Toux · then Stuart Williams 10 3 8 29 Mar 25
Red Nude Rouge (GB)then Thibault Speicher 10 0 2 28 Jan 23
Kalkara (FR) 9 1 5 29 Sep 26
I Liked It (FR) 9 1 2 24 Sep 26
Shehna (FR) 9 1 1 13 Dec 25
Showing the 60 most-raced of the 92 horses sent out in this window — each ran at least 2 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, 7 arrived from another yard in our archive, most often from David Menuisier (3); 53 had their first archived run for this yard.

16 have since run for another yard, most often for J-C Bertin (2); 44 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 9
Only 9 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
405907678498
A flat yard: the season runs Mar–Oct. Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Jockey bookings

same window · biggest samples first
Go-to riderMlle Laura Grosso
13% of all rides
7.4% SR · A/E 1.29
RiderRWSR£1
Mlle Laura Grosso 54 4 7.4% −21.20
Eddy Hardouin 53 2 3.8% −26.30
Cristian Demuro 38 4 10.5% +1.70
Pierre Bazire 37 0 0% −37.00
M Grandin 35 5 14.3% +45.90
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2010→
87
Archived wins
7
Pattern / graded wins
£2.62m
Prize money
2013
Best season · 10 wins
Legend (FR) — Prix de Flore (3yo+ Fillies & Mares) (Turf) Saint-Cloud (FR) · Oct 2024 · Group 3
£34,783
Showna (FR) — Prix Imprudence (Fillies) (Turf) Deauville (FR) · Apr 2026 · Group 3
£31,826
Tosen Gift (IRE) — Prix Rose de Mai () (3yo Fillies) (Turf) Saint-Cloud (FR) · Mar 2018 · Listed
£24,336
Notable horses
Susukino (FR) Bubbly (FR) Kings Canyon (FR) Pink (FR) Lovely One (FR) Legend (FR)

Sires in the string

progeny record · win % by ground and trip
Zelzal (FR) 10% · 6–60
Progeny have won 9.4% of 1,677 runs since 2008 (240 horses).
Kendargent (FR) 6.5% · 3–46
Progeny have won 9.6% of 5,220 runs since 2008 (580 horses). Weakest over 2m1f – 2m4f (all codes): 5.9% from 253.
Panis (USA) 3.8% · 1–26
Progeny have won 8.4% of 1,976 runs since 2008 (211 horses). Strongest on Heavy going: 12.3% from 146. Weakest over 2m1f – 2m4f (all codes): 4.3% from 116.
Intello (GER) 5.3% · 1–19
Progeny have won 10.6% of 3,478 runs since 2008 (390 horses). Strongest on Heavy going: 14.7% from 231. Weakest over 2m1f – 2m4f (all codes): 5.4% from 184.
Ribchester (IRE) 5.6% · 1–18
Progeny have won 9.1% of 2,746 runs since 2008 (261 horses). Strongest on Heavy going: 15.5% from 116. Strongest at trips under 6f (all codes): 14.1% from 213.
French Fifteen (FR) 28.6% · 4–14
Progeny have won 8.8% of 981 runs since 2008 (127 horses). Strongest on Heavy going: 12.8% from 125. Strongest over 2m1f – 2m4f (all codes): 13.2% from 106. Weakest over 1m – 1m1f (all codes): 5.2% from 210.
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 22 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 1,441 · newest first

The latest 50 of 1,441 archived runners, newest first. The full record runs from 28 April 2010 to 20 October 2026.

DateCourseHorseRaceFinishSP
20 Oct 26 Clairefontaine (FR) Armstrong Glory (FR)J: Cristian Demuro Px Merc. 21.10.2026-dern. Journ. Des Anim. Equidays(px D.l'et. D.vtes)12f · Heavy · 12 ran 6th 8/1
20 Oct 26 Clairefontaine (FR) Ruffano Bello (FR)J: Arthur Vilchien Prix #equidayscalvados (Prix De La Couture Bardin)8f · Heavy · 8 ran 6th 50/1
20 Oct 26 Bordeaux Le Bouscat (FR) Mononof (FR)J: R Sahajasein Prix Jean-claude Guerin12f · Soft · 14 ran 9th 10/1
18 Oct 26 Longchamp (FR) Land Of Liberty (FR)J: C. Soumillon Prix Casimir Delamarre9f · Good To Soft · 11 ran 11th 20/1
14 Oct 26 Saint-Cloud (FR) Periwinkle (FR)J: Hugo Boutin Prix De La Fontaine8f · Good To Soft · 9 ran 3rd 16/1
14 Oct 26 Saint-Cloud (FR) Incentive Victory (FR)J: Glen Meury Prix Maurice Larraun12f · Good To Soft · 10 ran 3rd 5/2F
13 Oct 26 Longchamp (FR) Grand Terroir (FR)J: Aurelien Lemaitre Prix De Miromesnil12f · Good To Soft · 15 ran 4th 40/1
10 Oct 26 Chantilly (FR) Rigel Blue (FR)J: Alexis Pouchin Prix De La ColleraieClass 3 · 9f · Soft · 15 ran 10th 18/1
09 Oct 26 Compiegne (FR) Meisho Velite (FR)J: Mme Laura Grosso Prix Du Carrefour Du Fond PernantClass 3 · 7f · Very Soft · 15 ran 2nd 16/1
08 Oct 26 Saint-Cloud (FR) Shambhalla (FR)J: Cristian Demuro Prix De Rocquencourt10f · Soft · 15 ran 2nd 5/2F
08 Oct 26 Saint-Cloud (FR) Armstrong Glory (FR)J: Cristian Demuro Prix Du Chesnay10f · Soft · 16 ran 11th 11/4F
07 Oct 26 Chantilly (FR) Nekoshima (FR)J: Aurelien Lemaitre Prix Des Terroirs De France7f · Standard · 10 ran 6th 25/1
04 Oct 26 Longchamp (FR) Mononof (FR)J: Mme Laura Grosso Qatar Prix de la Place de l'EtoileClass 1 · 10f · Good To Soft · 18 ran 10th 100/1
04 Oct 26 Longchamp (FR) Showna (FR)J: Marvin Grandin Qatar Prix de la Foret (Group 1)Class 1 · 7f · Good To Soft · 8 ran 7th 33/1
02 Oct 26 Saint-Cloud (FR) Land Of Liberty (FR)J: Marvin Grandin Prix CoronationClass 1 · 8f · Heavy · 13 ran 5th 40/1
29 Sep 26 Chantilly (FR) Kalkara (FR)J: Marvin Grandin Prix De BonnevalClass 1 · 5.5f · Good To Soft · 11 ran 6th 28/1
27 Sep 26 Amiens (FR) Ruffano Bello (FR)J: Arthur Vilchien Prix Yves Saint Martin11f · Soft · 9 ran 9th 16/1
24 Sep 26 Compiegne (FR) I Liked It (FR)J: Cristian Demuro Prix De Vieux Moulin8f · Good To Soft · 14 ran 1st 4/1
24 Sep 26 Compiegne (FR) Meisho Sugar (FR)J: R Sahajasein Prix De Choisy Au Bac8f · Good To Soft · 15 ran 11th 22/1
24 Sep 26 Compiegne (FR) Incentive Victory (FR)J: Alexis Pouchin Prix De Fresnoy-la-riviere12f · Good To Soft · 11 ran 4th 8/1

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 S Kobayashi's strike rate?
S Kobayashi has won 24 of 416 runners since 2022, a strike rate of 5.8% (as at 22 October 2026). Figures are computed from our own results archive.
Which course does S Kobayashi do best at?
Saint-Cloud by strike rate: 10 wins from 111 runners (9%) 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 S Kobayashi?
Mlle Laura Grosso, with 54 runners since 2022 — 13% of the total. That pairing has won 4 (7.4%).
Is S Kobayashi in form?
Too few runners in the last 14 days to read — 9 runners, which is not a sample we will draw a conclusion from.
What is S Kobayashi's Fair A/E?
0.87, from 416 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 22 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).