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Trainer profile

G Lassaussaye

113 runners in the lifetime window · 55 individual horses
As at 8 Nov 2026 · KTB archive: 2005–present, updated daily
Last runner 47 days ago 95% of runners over jumps
Last 5 seasons Lifetime (2014→)
from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it
4–113
Wins / Runs
3.5%
Strike rate
n=113
23 (20%)
Placed
0.61
Fair A/E
n=107 · 0.64 incl. margin
−62.50
£1 level stake
n=113 at SP · −55.3%
£313k
Prize money (window)
Strike by season
0%
KTB Yard Profile

Sends out around 10 runners a season, almost all over hurdles and fences, winning with 4% of them — a touch below the margin-free market read across the lifetime window (Fair A/E 0.61).

Deterministic profile computed from 113 archived runs (lifetime window) · updated 8 Nov 2026
The read

Debutants struggle at 0% (n=45, Fair A/E 0.00). The market has consistently overbet the yard over 2m1f – 2m4f: Fair A/E 0.49 across 94 runners (2.1% strike, −73.00 to a £1 stake) — runners there underperform what the price implies.

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

Yard patterns

the angles behind the record · vs 3.5% baseline
Fresh · 61+ days off
3.4%−0.1
n=29 · A/E 0.66 · £1 −16.30
New recruits · first run for the yard
10%+6.5
n=10 · A/E 0.00 · £1 +8.00
Debutants · first career start
0%−3.5
n=45 · A/E 0.00 · £1 −45.00
First-time headgear · true-first definition
0%−3.5
n=22 · A/E 0.00 · £1 −22.00
Headgear returns · back on after a bare run
0%−3.5
n=2 · A/E 0.00 · £1 −2.00
When favourite
33.3%
n=3 · A/E 0.00 · £1 +15.00
Claiming riders · a claimer in the saddle
0%−3.5
n=11 · A/E 0.00 · £1 −11.00
Group / Graded races · pattern & listed
0%−3.5
n=12 · A/E 0.00 · £1 −12.00

Each tile is the record in that situation vs the 3.5% 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 debutants 0% vs 3.5% · n=45
With a new jockey booking 1.4% vs 3.5% · n=72
Over 2m1f – 2m4f 2.1% vs 3.5% · n=94 · A/E 0.49
In Hurdle races 2.7% vs 3.5% · n=73 · A/E 0.63
This filter uses derived form angles computed for 8.4% of the archive so far (as at 8 Nov 2026); the sample will grow as sequencing completes.
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 73 2 2.7% −52.00
Chase 34 1 2.9% −22.50
Flat 6 1 16.7% +12.00

Going

GoingRWSR£1
Soft 71 3 4.2% −32.00
Heavy 36 1 2.8% −24.50
Good to Soft 2 0 0% −2.00
Good 2 0 0% −2.00
Standard (AW) 2 0 0% −2.00

Courses

CourseRWSR£1
Auteuil (FR) 61 3 4.9% −28.50
Dieppe 13 0 0% −13.00
Enghien (FR) 11 0 0% −11.00
Compiegne (FR) 9 0 0% −9.00
Saint-Malo (FR) 4 0 0% −4.00
Deauville (FR) 3 0 0% −3.00
Le Lion-D'Angers (FR) 3 0 0% −3.00
Angers (FR) 2 0 0% −2.00
Clairefontaine (FR) 2 0 0% −2.00
Pau 1 0 0% −1.00
Lyon Parilly 1 0 0% −1.00
Fontainebleau (FR) 1 0 0% −1.00
Maisons-Laffitte (FR) 1 0 0% −1.00
Le Touquet 1 1 100% +17.00

Class

ClassRWSR£1
Class 1 12 0 0% −12.00
Class 4 5 0 0% −5.00
Class 5 4 0 0% −4.00

Market position

In the bettingRWSRA/E£1
Favourite 3 1 33.3% 0.00 +15.00
2nd–3rd fav 13 1 7.7% 0.82 −4.70
4th–6th fav 27 2 7.4% 1.05 −2.80
7th+ in betting 70 0 0% 0.00 −70.00
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
79.2% completed · 106 obstacle runners (chases & hurdles)
CodeRCompFURPUBDOth
Chase 33 78.8% 2 1 4 0 0
Hurdle 73 79.5% 4 0 11 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
Demain Des L'aube (FR)then Henry De Bromhead 9 2 4 4 Mar 18
Gielo De Somoza (FR)from Louis Baudron 8 0 1 19 Sep 17
Nevele Star (FR) 4 0 0 22 Sep 26
Imoona De Belair (FR) 4 1 1 3 Dec 22
Carline Des Carres (FR) 4 0 0 6 Apr 22
Cisterien (FR) 4 0 2 25 Jun 20
Soie De Coeur (FR) 3 0 1 29 Jun 24
Klovis (FR) 3 0 0 23 Sep 23
Deejay Mecene (FR)then Mme S Delaroche 3 0 0 1 Jun 19
Crazy Boy (FR) 3 0 1 10 May 19
Diab'Less (FR)from Louis Baudron 3 0 1 27 Jun 16
Tinaka (FR) 3 0 0 20 Jun 16
All 55 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 55 horses listed, 10 arrived from another yard in our archive, most often from Mlle M-L Mortier (4) and Louis Baudron (2); 45 had their first archived run for this yard.

9 have since run for another yard, most often for Mme S Delaroche (2); 46 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, lifetime
JFMAMJJASOND
00200011000060
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 riderRomain Bonnet
35% of all rides
2.6% SR · A/E 0.76
RiderRWSR£1
Romain Bonnet 39 1 2.6% −30.70
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2014→
4
Archived wins
£313k
Prize money
2022
Best season · 1 win
Demain Des L'aube (FR) — Prix Souviens Toi (Hurdle) (Handicap) (5yo) (Turf) Auteuil (FR) · Mar 2018
£24,690
Imoona De Belair (FR) — Prix Coq Gaulois (Chase) (AQPS Conditions) (4yo) (Turf) Auteuil (FR) · Nov 2022
£20,101
Demain Des L'aube (FR) — Prix Pharaon (Hurdle) (Conditions) (4yo) (Turf) Auteuil (FR) · Jun 2017
£19,692
Notable horses
Demain Des L'aube (FR) Imoona De Belair (FR) Grey Frost (FR)

Sires in the string

progeny record · win % by ground and trip
Antarctique (IRE) 0% · 0–18
Progeny have won 12.2% of 830 runs since 2008 (87 horses). Weakest on Good going: 8.7% from 127.
Choeur Du Nord (FR) 0% · 0–17
Progeny have won 13.7% of 803 runs since 2020 (142 horses). Strongest over 1m5f – 2m (all codes): 18.3% from 120.
Sumitas (GER) 12.5% · 2–16
Progeny have won 11.5% of 87 runs since 2013 (13 horses).
Clovis Du Berlais (FR) 0% · 0–6
Progeny have won 9.3% of 771 runs since 2021 (112 horses). Strongest on Heavy going: 12.9% from 155. Weakest on Good to Soft going: 5.5% from 145.
Vatori (FR) 0% · 0–6
Progeny have won 7.3% of 905 runs since 2010 (89 horses).
Chichi Creasy (FR) 0% · 0–4
Progeny have won 3.5% of 370 runs since 2012 (46 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 8 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 113 · newest first

The latest 50 of 113 archived runners, newest first. The full record runs from 16 April 2014 to 22 September 2026.

DateCourseHorseRaceFinishSP
22 Sep 26 Auteuil (FR) Nevele Star (FR)J: Antoine Coupu Prix Amati17.5f · Very Soft · 7 ran 6th 50/1
28 Aug 26 Saint-Malo (FR) La Chorale (FR)J: Axel Lepage Prix Gilles Et Roger Chaignon (Prix Senonnes)Class 5 · 17f · Good To Soft · 10 ran PU 28/1
28 Aug 26 Saint-Malo (FR) Nevele Star (FR)J: Antoine Coupu Prix Gilles Et Roger Chaignon (Prix Senonnes)Class 5 · 17f · Good To Soft · 10 ran 5th 33/1
26 Aug 26 Clairefontaine (FR) Lilajo (FR)J: Killian Michel Prix Du E100 Fendt (Prix De La Risle)18f · Soft · 9 ran 8th 28/1
26 Aug 26 Clairefontaine (FR) Solea Nonantaise (FR)J: Teddy Vabois Prix Dieselross - Fendt (Prix Astrolabe)Class 4 · 17f · Soft · 10 ran 9th 18/1
07 Aug 26 Dieppe (FR) Kaid De Laprelle (FR)J: Killian Michel Prix Mika Motor Location (Prix D'angers - Chmpt Paris Turf Des Ajj)Class 4 · 19f · Soft · 9 ran 8th 100/1
07 Aug 26 Dieppe (FR) Grace De Teillee (FR)J: Killian Michel Prix Societe Nouvelle Abraham Depannage (Prix Arenice)19.5f · Soft · 14 ran — 50/1
07 Aug 26 Dieppe (FR) Carlina Nonantaise (FR)J: Killian Michel Prix A+ Glass Rouxmesnil (Prix Remy Mouquet)Class 4 · 17f · Soft · 12 ran F 66/1
01 Aug 26 Saint-Malo (FR) Nevele Star (FR)J: Antoine Coupu Prix General Macon De La GiclaisClass 5 · 17f · Soft · 8 ran 6th 18/1
01 Aug 26 Saint-Malo (FR) La Chorale (FR)J: Axel Lepage Prix General Macon De La GiclaisClass 5 · 17f · Soft · 8 ran 5th 20/1
17 Jul 26 Dieppe (FR) Lilajo (FR)J: Antoine Coupu Prix De L'Hippodrome De Merano19f · Soft · 6 ran 5th 8/1
17 Jul 26 Dieppe (FR) My Little Secret (FR)J: Killian Michel Prix De L'Hippodrome De Merano19f · Soft · 6 ran 2nd 20/1
10 Jul 26 Dieppe (FR) Nevele Star (FR)J: Killian Michel Prix Du Prieure Hurdle4 · 17f · Soft · 11 ran 8th 80/1
10 Jul 26 Dieppe (FR) Solea NonantaiseJ: T Vabois Prix Du Prieure Hurdle4 · 17f · Soft · 11 ran 3rd 66/1
17 May 25 Auteuil (FR) Pepita Street (FR)J: Raphael Mayeur Prix Pretentaine (Hurdle) (Handicap) (4yo) (Turf)18f · Very Soft · 18 ran PU 171/1
24 Sep 24 Auteuil (FR) De Vive Voix (FR)J: Charly Prichard Prix Calabrais (Hurdle) (Listed Handicap) (4yo Fillies) (Turf)18f · Heavy · 14 ran 11th 51/1
29 Jun 24 Dieppe (FR) Soie De Coeur (FR)J: Raphael Mayeur Prix Intersport Dieppe (Hurdle) (Conditions) (4yo) (Turf)17f · Soft · 15 ran 5th 51/10
08 Jun 24 Auteuil (FR) Trouvaile Debelair (FR)J: Raphael Mayeur Prix Samour (Chase) (Handicap) (4yo) (Turf)22f · Very Soft · 12 ran F 59/1
28 May 24 Auteuil (FR) Soie De Coeur (FR)J: Raphael Mayeur Prix Aladdin (Hurdle) (Conditions) (4yo) (Turf)18f · Very Soft · 13 ran 9th 13/2
27 May 24 Compiegne (FR) Trouvaile Debelair (FR)J: Raphael Mayeur Prix A Mi Manera (Chase) (Conditions) (4yo Fillies) (Turf)17f · Heavy · 9 ran UR 28/1

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 G Lassaussaye's strike rate?
G Lassaussaye has won 4 of 113 runners since 2008, a strike rate of 3.5% (as at 8 November 2026). Figures are computed from our own results archive.
Which course does G Lassaussaye do best at?
Auteuil (FR) by strike rate: 3 wins from 61 runners (4.9%) since 2008. 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.
What is G Lassaussaye's Fair A/E?
0.61, from 107 runners with a computed fair probability since 2008. 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 8 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).