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Trainer profile

Yves de Nicolay

1,643 runners in the lifetime window · 209 individual horses
As at 29 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner Jul 2017 100% of runners on the flat
No runners 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.
175–1,643
Wins / Runs
10.7%
Strike rate
n=1,643
461 (28%)
Placed
0.90
n=1,378 · 0.78 incl. margin
−169.90
£1 level stake
n=1,409 at SP · −12.1%
£5.33m
Prize money (window)
Strike by season
3.7%
KTB Yard Profile

Sent out around 160 runners a season, almost all on the flat, winning with 11% of them — a touch below the margin-free market read across the lifetime window (Fair A/E 0.90). Debutants are a strength: 15% on first career starts (182 runs).

Deterministic profile computed from 1,643 archived runs (lifetime window) · updated 29 Oct 2026
KTB at a glance 21.1% when favourite Pierre-Charles Boudot: 9.7% from 515 Claiming riders: 12.9% Sent off the favourite in 7% of races
The read

Debutants strike at 15.4% (n=182, Fair A/E 0.73), but a horse in first-time headgear has been a poor signal at 6.8% (n=59, Fair A/E 0.55). Runners with a claiming rider up are the standout value angle: 12.9% strikes only just above baseline, but Fair A/E 1.21 and +65.90 to a £1 stake over 186 runners — a record the market has persistently underpriced. The market has consistently overbet horses returning fresh after 61+ days: 9% strike, Fair A/E 0.53 and −10.90 to a £1 stake over 277 runners — those runners underperformed what the price implied. Pierre-Charles Boudot rode 31% of the entries and matches the yard's average almost exactly (9.7%, A/E 1.07) — the partnership beats the margin-free market read. 34 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Poule d'Essai des Poulains at Longchamp (FR) (May 2009, £221,903). The stable star of the record was Silver Frost (IRE) — 7 wins from 16 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 10.7% baseline
Fresh · 61+ days off
9%−1.7
n=277 · A/E 0.53 · £1 −10.90
New recruits · first run for the yard
21.7%+11.0
n=23 · A/E 1.53 · £1 +46.90
Debutants · first career start
15.4%+4.7
n=182 · A/E 0.73 · £1 −23.30
First-time headgear · true-first definition
6.8%−3.9
n=59 · A/E 0.55 · £1 +22.70
Headgear returns · back on after a bare run
0%−10.7
n=25 · A/E 0.00 · £1 −23.00
When favourite
21.1%
n=114 · A/E 0.71 · £1 −15.80
Claiming riders · a claimer in the saddle
12.9%+2.2
n=186 · A/E 1.21 · £1 +65.90
Group / Graded races · pattern & listed
7%−3.7
n=300 · A/E 0.76 · £1 −59.90

Each tile is the record in that situation vs the 10.7% 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
With Christophe Soumillon 23.4% vs 10.7% · n=192
With Theo Bachelot 0% vs 10.7% · n=31
With Gregory Benoist 2.8% vs 10.7% · n=36
With Alexis Badel 3% vs 10.7% · n=33
With debutants 15.4% vs 10.7% · n=182
With Anthony Crastus 5.2% vs 10.7% · n=58
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) 519 55 10.6% +47.70
Good 392 39 9.9% −91.40
Soft 337 30 8.9% −123.80
Good to Soft 232 33 14.2% +63.60
Heavy 162 17 10.5% −66.00
Firm 1 1 100% —

Courses

CourseRWSR£1
Deauville 570 63 11.1% +78.10
Saint-Cloud (FR) 315 37 11.7% −18.80
Maisons-Laffitte (FR) 288 27 9.4% −70.60
Chantilly (FR) 203 24 11.8% −33.60
Longchamp (FR) 188 15 8% −104.20
Fontainebleau 19 2 10.5% −7.00
Compiegne 12 3 25% +5.20
Clairefontaine 12 0 0% −7.00
Dieppe 5 1 20% −3.00
Nantes (FR) 5 0 0% −1.00
Vichy (FR) 5 0 0% −2.00
Le Lion-D'Angers 4 0 0% −1.00
Le Croise-Laroche 3 1 33.3% −1.00
Saint-Malo 2 0 0% −1.00
Toulouse (FR) 2 0 0% —

Class

ClassRWSR£1
Class 1 300 21 7% −59.90

Market position

In the bettingRWSRA/E£1
Favourite 118 25 21.2% 0.73 −15.80
2nd–3rd fav 242 33 13.6% 0.96 −54.40
4th–6th fav 445 30 6.7% 0.86 −124.20
7th+ in betting 604 24 4% 1.09 +24.50
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
Pont Neuilly (FR)then H De Nicolay 57 5 14 3 Jul 17
Enfin Seuls (FR)then H De Nicolay 47 2 10 14 Jul 17
Delta Black Sheep (FR) 40 3 9 22 Dec 14
Chef Oui Chef (FR)then A Lamotte D'Argy 39 2 8 20 Aug 15
Frascata (FR) 37 5 10 17 Dec 15
Pyragorn (USA)from T Trapenard 30 4 11 28 Oct 14
New Frosty (FR)then Mme Pia Brandt 29 2 12 22 May 17
Lady Ohara (FR) 28 3 4 12 May 14
Le Valentin (FR)then Mme C Nicot 28 3 8 4 Dec 12
Queen Bubble (IRE) 26 2 8 6 Feb 14
Terre Du Vent (FR)then Tom George 26 4 7 12 Nov 11
Tout Va Bien (IRE)then S Smrczek 25 2 8 12 Mar 15
Showing the 60 most-raced of the 209 horses sent out in this window — each ran at least 9 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; 53 had their first archived run for this yard.

26 have since run for another yard, most often for H De Nicolay (5) and J-P Gauvin (2); 34 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
862071212131199108
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
31% of all rides
9.7% SR · A/E 1.07
RiderRWSR£1
Pierre-Charles Boudot 515 50 9.7% +37.60
Christophe Soumillon 192 45 23.4% −27.80
Stephane Pasquier 145 16 11% −58.10
Christophe-Patrice Lemaire 61 5 8.2% −22.90
Anthony Crastus 58 3 5.2% −24.50
Antoine Hamelin 40 2 5% −18.80
Tristan Normand 39 3 7.7% −21.40
Ioritz Mendizabal 36 5 13.9% +23.00
Gregory Benoist 36 1 2.8% −31.50
Maxime Guyon 34 5 14.7% +5.50
Mlle Maryline Veillat 34 2 5.9% −10.70
Alexis Badel 33 1 3% −25.30
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2005→
245
Archived wins
34
Pattern / graded wins
£7.08m
Prize money
2008
Best season · 36 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.
Silver Frost (IRE) — Poule d'Essai des Poulains (Colts) Longchamp (FR) · May 2009 · Group 1
£221,903
Ponte Tresa (FR) — Darley Prix Kergorlay Deauville (FR) · Aug 2008 · Group 2
£54,485
Soneva (USA) — Prix de Lieurey - Shadwell (Fillies) (Round) Deauville (FR) · Aug 2009 · Group 3
£38,835

Sires in the string

progeny record · win % by ground and trip
Slickly (FR) 8.2% · 8–97
Progeny have won 8% of 3,070 runs since 2008 (318 horses). Strongest on Heavy going: 11% from 310. Weakest over 1m5f – 2m (all codes): 4.9% from 243.
Medecis (GB) 7.3% · 7–96
Progeny have won 7.1% of 1,595 runs since 2008 (112 horses).
Verglas (IRE) 13.3% · 10–75
Progeny have won 10.2% of 6,977 runs since 2008 (499 horses).
Kaldounevees (FR) 14.3% · 10–70
Progeny have won 9.9% of 669 runs since 2008 (93 horses). Strongest on Standard (AW) going: 15.2% from 164. Weakest on Soft going: 4.6% from 152. Weakest over 1m – 1m1f (all codes): 4.7% from 106.
Gold Away (IRE) 4.8% · 3–63
Progeny have won 10.3% of 2,477 runs since 2008 (206 horses). Strongest over 1m5f – 2m (all codes): 14.6% from 328. Weakest over 2m1f – 2m4f (all codes): 7.3% from 177.
Kentucky Dynamite (USA) 10.9% · 5–46
Progeny have won 9.4% of 1,067 runs since 2008 (112 horses). Weakest on Standard (AW) going: 5.8% from 277. Strongest over 1m5f – 2m (all codes): 12.4% from 145.
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 29 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 1,977 · newest first

The latest 50 of 1,977 archived runners, newest first. The full record runs from 10 March 2005 to 14 July 2017.

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 Yves de Nicolay's strike rate?
Yves de Nicolay has won 175 of 1,643 runners since 2008, a strike rate of 10.7% (as at 29 October 2026). Figures are computed from our own results archive.
Which course does Yves de Nicolay do best at?
Chantilly (FR) by strike rate: 24 wins from 203 runners (11.8%) 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.
Who rides most for Yves de Nicolay?
Pierre-Charles Boudot, with 515 runners since 2008 — 31% of the total. That pairing has won 50 (9.7%).
What is Yves de Nicolay's Fair A/E?
0.90, from 1,378 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 29 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).