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Trainer profile

Stuart Williams

7,062 runners in the lifetime window · 625 individual horses
As at 26 Oct 2026 · KTB archive: 2005–present, updated daily
Non-runners: 2.7% of 476 declared in the last 365 days, counting all recorded withdrawals, including reserves. For context, a typical day across all racing ends with about 6.5% withdrawn (middle half 5.3–8.1% over 364 racing days). As at 26 Oct 2026.
Last runner 2 days ago 100% of runners on the flat
from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it
827–7,062
Wins / Runs
11.7%
Strike rate
n=7,062
2,072 (29%)
Placed
1.02
n=7,027 · 0.88 incl. margin
−1,662.19
£1 level stake
n=7,061 at SP · −23.5%
£8.77m
Prize money (window)
Strike by season
10.5%
KTB Yard Profile

Sends out around 370 runners a season, almost all on the flat, winning with 12% of them — level with the margin-free market read across the lifetime window (Fair A/E 1.02). The yard is quiet just now — 0 winners in the last fortnight, below its own baseline.

Deterministic profile computed from 7,062 archived runs (lifetime window) · updated 26 Oct 2026
KTB at a glance Fires Nov–Feb 34.2% when favourite Marco Ghiani: 14.5% from 889 Claiming riders: 12.1% Sends off the favourite in 12% of races
The read

The record is strongest at Brighton (20.2%, n=242), clear of the yard's 11.7% baseline. It is weakest at Nottingham (3.2% over 124 runners) — the widest gap in the record. Debutants struggle at 4.5% (n=359, Fair A/E 0.94). The market has consistently overbet new recruits from other stables on their first run: 6.4% strike, Fair A/E 0.66 and −167.25 to a £1 stake over 249 runners — those runners underperform what the price implies. Right now the yard is in a quiet spell: 0 from 16 runners in the last 14 days (0%, 11.7pts below the 11.7% baseline). Marco Ghiani rides 13% of the entries and edges the yard's average (14.5% vs 11.7%, A/E 1.13) — the partnership beats the margin-free market read. The yard also reads well off a 0-7-day break (21%, n=604). 12 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the totescoop6 Heritage Handicap at Ascot (Jul 2016, £62,250). The stable star of the record: Pactolus (IRE) — 14 wins from 95 runs for the yard. Seasonally, the yard fires Nov–Feb.

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

Yard patterns

the angles behind the record · vs 11.7% baseline
Fresh · 61+ days off
10%−1.7
n=922 · A/E 1.04 · £1 −185.35
New recruits · first run for the yard
6.4%−5.3
n=249 · A/E 0.66 · £1 −167.25
Debutants · first career start
4.5%−7.2
n=359 · A/E 0.94 · £1 −191.37
First-time headgear · true-first definition
9.2%−2.5
n=303 · A/E 1.04 · £1 −54.88
Headgear returns · back on after a bare run
7.5%−4.2
n=147 · A/E 0.77 · £1 −92.25
When favourite
34.2%
n=857 · A/E 1.14 · £1 −24.30
Claiming riders · a claimer in the saddle
12.1%+0.4
n=1,692 · A/E 1.02 · £1 −458.03
Group / Graded races · pattern & listed
5.7%−6.0
n=209 · A/E 0.83 · £1 −14.89

Each tile is the record in that situation vs the 11.7% 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
Off a 0-7-day break 21% vs 11.7% · n=604
At Brighton 20.2% vs 11.7% · n=242
With Olivia Haines 23.2% vs 11.7% · n=56
With debutants 4.5% vs 11.7% · n=359
At Nottingham 3.2% vs 11.7% · n=124
With Callum Shepherd 2.5% vs 11.7% · n=79
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
Flat 7,061 826 11.7% −1,664.44
Hurdle 1 1 100% +2.25

Going

GoingRWSR£1
Standard (AW) 3,428 489 14.3% −670.90
Good to Firm 1,594 183 11.5% −238.01
Good 1,018 83 8.2% −191.27
Good to Soft 445 27 6.1% −254.18
Soft 421 29 6.9% −237.35
Heavy 94 7 7.4% −42.80
Firm 62 9 14.5% −27.68

Courses

CourseRWSR£1
Chelmsford (AW) 910 128 14.1% −162.66
Kempton 881 104 11.8% −145.30
Lingfield (AW) 674 114 16.9% −68.72
Wolverhampton (AW) 634 103 16.2% −179.95
Yarmouth 464 49 10.6% −141.88
Newmarket 392 42 10.7% −79.37
Newmarket 356 21 5.9% −14.17
Windsor 343 35 10.2% +71.49
Brighton 242 49 20.2% +20.18
Southwell (AW) 221 31 14% −48.37
Sandown 180 14 7.8% −91.37
Ascot 176 8 4.5% −97.25
Leicester 167 19 11.4% −58.88
Epsom 162 18 11.1% −6.46
Lingfield 142 12 8.5% −85.62

Class

ClassRWSR£1
Class 5 2,290 290 12.7% −557.57
Class 4 1,600 165 10.3% −314.20
Class 6 1,436 225 15.7% −265.83
Class 2 823 75 9.1% −233.69
Class 3 678 54 8% −285.34
Class 1 209 12 5.7% −14.89
Class 7 25 6 24% +10.33

Market position

In the bettingRWSRA/E£1
Favourite 1,011 321 31.8% 1.11 −58.70
2nd–3rd fav 1,582 266 16.8% 1.02 −207.32
4th–6th fav 2,141 181 8.5% 0.99 −377.17
7th+ in betting 2,327 59 2.5% 0.75 −1,019.00
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.

Horses trained

same window as header · most-raced first
HorseRWPlLast ran
Shamshon (IRE)from Jamie Osborne 110 11 33 2 Mar 23
Pactolus (IRE) 95 14 37 25 Nov 21
Lunar Deity (GB)from Eve Johnson Houghton 87 11 32 5 Mar 21
Royal Birth (GB) 86 14 34 23 Nov 21
Welease Bwian (IRE) 83 9 34 2 Feb 17
Doctor Parkes (GB)from Eric Alston · then Natalie Lloyd-Beavis 81 7 20 25 May 17
Revolutionise (IRE)from Roger Varian 78 10 27 27 Feb 26
Excellent George (GB) 67 7 24 2 May 22
The Strig (GB)then Nigel Tinkler 62 9 19 22 Oct 13
Existent (GB)from John & Thady Gosden 58 3 16 11 Jun 26
Lord Rapscallion (IRE)from J P Murtagh 54 6 15 18 May 25
Swift Approval (IRE)from Kevin Ryan · then Phil McEntee 50 4 16 25 Jun 20
Showing the 60 most-raced of the 625 horses sent out in this window — each ran at least 23 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, 32 arrived from another yard in our archive, most often from Roger Varian (3) and Clive Cox (2); 28 had their first archived run for this yard.

15 have since run for another yard, most often for Chris Gordon (3); 45 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

Quiet spell
0 from 16 0% · −11.7pts vs baseline
Last 14 days0%
Lifetime base11.7%
Shown only when the 14-day window is large enough to mean anything (n≥15). A cold run renders the same card with a quiet badge — never hidden.

When the yard fires

strike by month, lifetime
JFMAMJJASOND
19161297911111471315
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 riderMarco Ghiani
13% of all rides
14.5% SR · A/E 1.13
RiderRWSR£1
Marco Ghiani 889 129 14.5% −18.31
William Carson 499 68 13.6% −97.61
Aaron Jones 371 44 11.9% −90.33
Sean Levey 351 45 12.8% −20.09
Saleem Golam 314 26 8.3% −88.62
Oisin Murphy 265 38 14.3% −71.72
Richard Kingscote 192 28 14.6% −56.73
Andrea Atzeni 188 28 14.9% +1.94
Rossa Ryan 177 26 14.7% −58.30
Luke Catton 165 17 10.3% −60.85
Harry Bentley 146 13 8.9% −36.92
P J McDonald 141 21 14.9% −33.15
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2005→
894
Archived wins
12
Pattern / graded wins
£9.24m
Prize money
2019
Best season · 74 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.
Royal Birth (GB) — totescoop6 Heritage Handicap Ascot · Jul 2016 · Class 2
£62,250
Quinault (GER) — Al Basti Equiworld Dubai Criterion Stakes (Group 3) York · Jun 2025 · Group 3
£56,710
Azleet (GB) — Lanwades Stud Nell Gwyn Stakes (Fillies' Group 3) Newmarket · Apr 2026 · Group 3
£53,875

Sires in the string

progeny record · win % by ground and trip
Lope De Vega (IRE) 14.1% · 52–369
Progeny have won 13.8% of 12,175 runs since 2008 (1,103 horses). Weakest over 1m5f – 2m (all codes): 9.3% from 957.
Oasis Dream (GB) 16.3% · 49–301
Progeny have won 11.8% of 18,008 runs since 2008 (1,510 horses). Strongest on Firm going: 17.3% from 150. Weakest on Heavy going: 8.5% from 483. Weakest over 1m5f – 2m (all codes): 7.1% from 790.
Exceed and Excel (AUS) 11.4% · 25–219
Progeny have won 11.9% of 16,028 runs since 2008 (1,161 horses). Strongest on Firm going: 20.7% from 198. Weakest on Soft going: 7.9% from 1,194.
Kheleyf (USA) 10.4% · 21–202
Progeny have won 8.7% of 10,544 runs since 2008 (676 horses). Strongest on Firm going: 12.2% from 131. Weakest over 1m2f – 1m4f (all codes): 5.6% from 880.
Invincible Spirit (IRE) 12.8% · 25–196
Progeny have won 11.9% of 20,830 runs since 2008 (1,573 horses). Strongest on Firm going: 16.1% from 161. Weakest over 1m5f – 2m (all codes): 7.8% from 843.
Diktat (GB) 10% · 16–160
Progeny have won 8.2% of 4,931 runs since 2008 (337 horses). Strongest at trips under 6f (all codes): 11.4% from 431. Weakest over 2m5f – 3m (all codes): 5.1% from 156.
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 26 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 7,741 · newest first

The latest 50 of 7,741 archived runners, newest first. The full record runs from 3 January 2005 to 24 October 2026.

DateCourseHorseRaceFinishSP
19 Oct 26 Bath Adalida (GB)J: Kieran Shoemark Big Stage Hire Handicap StakesClass 5 · 5f · Good To Soft · 8 ran 4th 9/1
13 Oct 26 Leicester Humam (IRE)J: Marco Ghiani Happy 80th Reg Ling Handicap StakesClass 3 · 7f · Good To Soft · 17 ran 11th 25/1
09 Oct 26 Newmarket Expert Agent (GB)J: Marco Ghiani HKJC World Pool Handicap StakesClass 4 · 7f · Good To Soft · 11 ran 8th 17/2

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 Stuart Williams's strike rate?
Stuart Williams has won 827 of 7,062 runners since 2008, a strike rate of 11.7% (as at 26 October 2026). Figures are computed from our own results archive.
Which course does Stuart Williams do best at?
Brighton by strike rate: 49 wins from 242 runners (20.2%) 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 Stuart Williams?
Marco Ghiani, with 889 runners since 2008 — 13% of the total. That pairing has won 129 (14.5%).
Is Stuart Williams in form?
In the last 14 days: 16 runners, 0 winners, a strike rate of 0%. That is below the baseline of 11.7% since 2008.
What is Stuart Williams's Fair A/E?
1.02, from 7,027 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 26 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).