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Jockey profile

Sebastien Castellier

58 rides in the lifetime window · 47 individual horses
As at 6 Nov 2026 · KTB archive: 2005–present, updated daily
Last ride Dec 2014 100% of rides on the flat
Last 5 seasons Lifetime (2008→)
No rides in the last 5 seasons — showing the lifetime record, from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it.
11–58
Wins / Runs
19%
Strike rate
n=58
18 (31%)
Placed
1.40
Fair A/E
n=27 · 1.35 incl. margin
+22.90
£1 level stake
n=33 at SP · +69.4%
£122k
Prize money (window)
Strike by season
0%
KTB at a glance First rides: 21.3%

Riding patterns

the angles behind the record · vs 19% baseline
First ride on the horse · first captured pairing
21.3%+2.3
n=47 · A/E 0.90 · £1 +5.10
Last-time-out winners · previous run was a win
0%−19.0
n=5 · A/E 0.00 · £1 −3.00
Fresh horses · 61+ days off
9.1%−9.9
n=11 · A/E 0.00 · £1 −6.00
When favourite
33.3%
n=3 · A/E — · £1 +2.30
Big fields · 14+ runners
6.7%−12.3
n=15 · A/E 1.11 · £1 +10.80
Group / Graded races · pattern & listed
0%−19.0
n=6 · A/E 0.00 · £1 −6.00

Each tile is the record in that situation vs the 19% baseline — descriptive splits with the sample always shown, for you to weigh. Tiles under 30 runs render muted. First rides are the first captured pairing of horse and rider; last-time-out winners are horses whose previous captured run was a win; claiming rides are runs where the rider carried a weight claim. Group / Graded covers pattern and listed races.

Notable angles

vs their own baseline
On first rides for the horse 21.3% vs 19% · n=47
In Flat races 19% vs 19% · n=58 · A/E 1.40
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) 19 4 21.1% +34.60
Good 13 5 38.5% +1.30
Good to Soft 12 0 0% −6.00
Soft 10 1 10% −4.00
Heavy 4 1 25% −3.00

Courses

CourseRWSR£1
Deauville (FR) 16 2 12.5% +34.60
Nantes 4 1 25% −2.00
Chateaubriant 3 0 0% −1.00
Pornichet-La Baule 3 2 66.7% —
Saint-Malo 3 1 33.3% −1.00
Toulouse 3 1 33.3% −2.00
Le Lion-D'Angers (FR) 2 0 0% −2.00
Les Sables-d'Olonne 2 0 0% −1.00
Seiches-Sur-Le-Loir 2 1 50% —
Le Mans (FR) 2 0 0% −1.00
Angers 2 0 0% —
La Teste De Buch 2 1 50% +3.30
Saint-Cloud (FR) 2 0 0% −2.00
La Rochelle-Chatelaillon 1 1 100% —
Craon (FR) 1 0 0% −1.00

Class

ClassRWSR£1
Class 1 6 0 0% −6.00

Market position

In the bettingRWSRA/E£1
Favourite 3 1 33.3% — +2.30
2nd–3rd fav 8 0 0% 0.00 −8.00
4th–6th fav 4 0 0% 0.00 −4.00
7th+ in betting 18 2 11.1% 3.68 +32.60
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 ridden

same window as header · most-raced first
HorseRWPlLast ran
Maistro (IRE) 3 1 1 9 Jan 13
Suricat Girl (IRE) 3 0 3 13 Jul 12
Social Realism (IRE) 3 0 0 19 Nov 11
Didge (FR) 2 0 0 15 Dec 12
Vertana (IRE) 2 0 1 11 Nov 11
Milmajor (FR) 2 1 1 5 Oct 11
Red Anthem (GB) 2 1 1 21 Jun 11
Last Shot (FR) 2 1 1 22 Jun 10
Assidue (IRE) 1 0 0 2 Dec 14
Deuxieme Empire (FR) 1 0 0 18 Nov 14
Avec Simplicite (FR) 1 0 1 13 Jan 14
Julie Clary (IRE) 1 0 0 14 Dec 13
All 47 horses ridden 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.

By month

strike by month, lifetime
JFMAMJJASOND
000334003300332027
A flat rider: the season runs Mar–Oct. Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Riding for

same window · biggest samples first
Main yardH-A Pantall
57% of all rides
18.2% SR · A/E 1.52
TrainerRWSR£1
H-A Pantall 33 6 18.2% +12.10
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2007→
11
Archived wins
£123k
Prize money
2011
Best season · 6 wins
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.
Maistro (IRE) — Prix de Moulins la Marche (Handicap) (3yo) (Fibresand) Deauville (FR) · Dec 2012
£10,000
Bint Almatar (USA) — Prix de Coislin Nantes · Oct 2010
£8,850
Up Where We Belong (FR) — Prix du Castelet Toulouse · Oct 2010
£8,850
Notable horses
Maistro (IRE) Milmajor (FR) Red Anthem (GB) Last Shot (FR) Compact Storm (GB) Uca De Thaix (FR)

Sires of the horses ridden

progeny record · win % by ground and trip
Antonius Pius (USA) 0% · 0–3
Progeny have won 8.1% of 3,236 runs since 2009 (195 horses). Weakest on Good to Soft going: 5% from 339.
Excellent Art (GB) 33.3% · 1–3
Progeny have won 9.9% of 4,555 runs since 2011 (298 horses). Weakest over 1m5f – 2m (all codes): 5.8% from 451.
Pivotal (GB) 0% · 0–3
Progeny have won 13.6% of 12,789 runs since 2008 (1,019 horses). Weakest over 2m5f – 3m (all codes): 7.4% from 108.
Sinndar (IRE) 0% · 0–3
Progeny have won 11.3% of 3,410 runs since 2008 (394 horses). Strongest on Good to Firm going: 15.2% from 256. Weakest over 6f – 7f (all codes): 5.3% from 132.
Le Fou (IRE) 50% · 1–2
Progeny have won 8.3% of 1,417 runs since 2010 (137 horses). Strongest on Good to Soft going: 12.1% from 239.
Majorien (GB) 50% · 1–2
Progeny have won 9.7% of 401 runs since 2008 (48 horses).
Top line: the rider'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 6 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 59 · newest first

The latest 50 of 59 archived rides, newest first. The full record runs from 23 October 2007 to 2 December 2014.

DateCourseHorseRaceFinishSP
02 Dec 14 Deauville (FR) Assidue (IRE)T: F Lemercier Prix de la Mare Elan (Conditions) (3yo Fillies) (Polytrack)12.5f · Standard · 11 ran 5th 116/10
18 Nov 14 Saint-Cloud (FR) Deuxieme Empire (FR)T: H-A Pantall Prix Fairy Legend (Maiden) (3yo) (Turf)8f · Heavy · 17 ran 15th 179/10
13 Jan 14 Deauville (FR) Avec Simplicite (FR)T: J Boisnard Prix De La Tete Au Loup (Conditions) (4yo) (Fibresand)12f · Standard · 15 ran 2nd 43/1
14 Dec 13 Deauville (FR) Julie Clary (IRE)T: H-A Pantall Prix De La Mare Elan (Conditions) (3yo Fillies) (Fibresand)12f · Standard · 15 ran 6th 56/10
17 Feb 13 Seiches-Sur-Le-Loir Val D'Arc (FR)T: E Leray Prix du Loir (AQPS)13.5f · Good · 4 ran 11th —
09 Jan 13 Deauville (FR) Maistro (IRE)T: J-F Doucet Prix du Bois Hamiot (Handicap) (4yo) (Fibresand)9.5f · Standard · 16 ran 5th 15/1
30 Dec 12 Deauville (FR) Volita Mome (FR)T: B Letourneux Prix du Haras de Saint-Lo (Conditions) (3yo Non-Thoroughbred Fillies) (Fibresand)12f · Standard · 14 ran 7th 12/1
28 Dec 12 Deauville (FR) Viva Kouk (FR)T: O Potier Prix Des Cruchettes (Conditions) (3yo+ Fillies & Mares) (Fibresand)9.5f · Standard · 11 ran 4th 24/1
15 Dec 12 Deauville (FR) Didge (FR)T: E Bergougnoux Prix de Bursard (Conditions) (3yo) (Fibresand)12f · Standard · 10 ran 7th 52/1
14 Dec 12 Deauville (FR) Maistro (IRE)T: J-F Doucet Prix de Moulins la Marche (Handicap) (3yo) (Fibresand)12f · Standard · 16 ran 1st 248/10
05 Dec 12 Deauville (FR) Didge (FR)T: E Bergougnoux Prix de Brehal (Claimer) (3yo) (Fibresand)12f · Standard · 16 ran 4th 29/1
04 Dec 12 Deauville (FR) Riwan (FR)T: H-A Pantall Prix de Bonnerie (Claimer) (4yo+) (Fibresand)12f · Standard · 14 ran 4th 21/1
04 Dec 12 Deauville (FR) Compact Storm (GB)T: H-A Pantall Prix de Monteillerie (Claimer) (3yo) (Fibresand)6.5f · Standard · 12 ran 1st 238/10
25 Oct 12 Deauville (FR) Maistro (IRE)T: J-F Doucet Prix Du Boschet (Conditions) (3yo) (Fibresand)12f · Standard · 9 ran 5th 33/1
27 Aug 12 Deauville (FR) Lord De Rio (FR)T: B Legros Prix De Colletot (Handicap) (5yo+) (Fibresand)12f · Standard · 15 ran 7th 15/2
03 Aug 12 Deauville (FR) King Of Song (FR)T: H-A Pantall Prix de la Morelle (Claimer) (3yo) (Fibresand)9.5f · Standard · 16 ran — 17/1
13 Jul 12 Maisons-Laffitte (FR) Suricat Girl (IRE)T: S Gouvaze Prix Du Rond De L'Epine (Handicap) (5yo+) (Turf)8f · Soft · 16 ran 4th 83/10
28 Jun 12 Deauville (FR) Suricat Girl (IRE)T: S Gouvaze Prix D'Equainville (Handicap) (5yo+) (Fibresand)7.5f · Standard · 16 ran 3rd 7/1
07 Jun 12 Saint-Cloud (FR) Suricat Girl (IRE)T: S Gouvaze Prix De Colombes (Handicap) (5yo+) (Turf)8f · Heavy · 18 ran 4th 13/2
26 May 12 Chateaubriant Sorry Woman (FR)T: H-A Pantall Prix de Choisel5.5f · Good To Soft · 3 ran 3rd 19/1

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 Sebastien Castellier's strike rate?
Sebastien Castellier has won 11 of 58 rides since 2008, a strike rate of 19% (as at 6 November 2026). Figures are computed from our own results archive.
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 6 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).