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Trainer profile

Kenneth Slack

297 runners in the lifetime window · 39 individual horses
As at 15 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner Feb 2019
Last 5 seasons Lifetime (2015→)
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.
62–297
Wins / Runs
20.9%
Strike rate
n=297
126 (42%)
Placed
1.28
Fair A/E
n=297 · 1.11 incl. margin
+66.77
£1 level stake
n=297 at SP · +22.5%
£306k
Prize money (window)
Strike by season
25%
KTB Yard Profile

Sent out around 60 runners a season, across both codes, winning with 21% of them — beating the margin-free market read across the lifetime window (Fair A/E 1.28).

Deterministic profile computed from 297 archived runs (lifetime window) · updated 15 Oct 2026
KTB at a glance 35.4% when favourite Henry Brooke: 29.7% from 74 Sent off the favourite in 28% of races
The read

The record is strongest at Sedgefield (28.6%, n=77), clear of the yard's 20.9% baseline. Horses returning fresh after 61+ days have been a poor signal at 10.4% (n=77, Fair A/E 0.92). Henry Brooke rode 25% of the entries and beats the yard's average (29.7% vs 20.9%, A/E 1.53) — the partnership beats the margin-free market read. The yard also read well on Soft going (29.6%, n=81) and in Chase races (30.2%, n=43). The stable star of the record was Tonto's Spirit (GB) — 9 wins from 26 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 20.9% baseline
Fresh · 61+ days off
10.4%−10.5
n=77 · A/E 0.92 · £1 +22.13
New recruits · first run for the yard
16.2%−4.7
n=37 · A/E 1.25 · £1 +28.50
Debutants · first career start
40%+19.1
n=5 · A/E 5.11 · £1 +25.00
First-time headgear · true-first definition
7.1%−13.8
n=14 · A/E 0.76 · £1 +7.00
Headgear returns · back on after a bare run
5.6%−15.3
n=18 · A/E 0.32 · £1 −16.33
When favourite
35.4%
n=82 · A/E 1.19 · £1 +0.02
Claiming riders · a claimer in the saddle
17.5%−3.4
n=120 · A/E 1.17 · £1 −6.78
Group / Graded races · pattern & listed
0%−20.9
n=1 · A/E 0.00 · £1 −1.00

Each tile is the record in that situation vs the 20.9% 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 Colm McCormack 8.3% vs 20.9% · n=36
On Soft going 29.6% vs 20.9% · n=81
With Henry Brooke 29.7% vs 20.9% · n=74
In Chase races 30.2% vs 20.9% · n=43
Off a 8-14-day break 30% vs 20.9% · n=40
At Sedgefield 28.6% vs 20.9% · n=77
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 162 33 20.4% +41.17
Flat 84 14 16.7% +0.18
Chase 43 13 30.2% +3.42
NH Flat 8 2 25% +22.00

Going

GoingRWSR£1
Good to Soft 81 18 22.2% +12.59
Soft 81 24 29.6% +24.27
Good 74 10 13.5% +1.41
Standard (AW) 23 3 13% +25.00
Good to Firm 22 4 18.2% +3.00
Heavy 16 3 18.8% +0.50

Courses

CourseRWSR£1
Sedgefield 77 22 28.6% +30.39
Catterick 57 14 24.6% +3.76
Cartmel 24 9 37.5% +52.38
Carlisle 18 1 5.6% −16.43
Newcastle (AW) 17 1 5.9% +4.00
Kelso 16 4 25% −2.25
Ayr 15 2 13.3% −2.33
Newcastle 13 1 7.7% −6.00
Musselburgh 12 2 16.7% −5.75
Wetherby 7 1 14.3% +2.00
Thirsk 6 2 33.3% +10.50
Redcar 6 0 0% −6.00
Hexham 6 0 0% −6.00
Hamilton 4 0 0% −4.00
Pontefract 4 1 25% +0.50

Class

ClassRWSR£1
Class 4 119 27 22.7% +30.68
Class 5 101 21 20.8% +18.42
Class 6 49 11 22.4% +31.17
Class 3 22 3 13.6% −7.50
Class 2 5 0 0% −5.00
Class 1 1 0 0% −1.00

Market position

In the bettingRWSRA/E£1
Favourite 95 32 33.7% 1.18 −1.48
2nd–3rd fav 87 17 19.5% 1.22 −0.25
4th–6th fav 75 12 16% 2.04 +95.50
7th+ in betting 40 1 2.5% 0.67 −27.00
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
89.3% completed · 205 obstacle runners (chases & hurdles)
CodeRCompFURPUBDOth
Chase 43 90.7% 1 1 2 0 0
Hurdle 162 88.9% 2 3 12 0 1
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
Tonto's Spirit (GB)from Michael Dods · then Dianne Sayer 26 9 15 20 Jan 19
Discoverie (GB)from Dianne Sayer 25 7 14 23 Apr 18
Calliope (GB)from Andrew Balding · then Dianne Sayer 18 2 9 18 Dec 18
Almost Gemini (IRE)from Charlie Mann 17 4 9 29 Oct 17
Omid (GB)from Evelyn Slack 17 2 6 2 Jul 17
Italian Riviera (GB)from E McNamara 16 6 8 2 Oct 18
Beeno (IRE)from Stephen Francis Magee · then Dianne Sayer 15 4 8 25 Mar 18
My Friend George (GB)from Evelyn Slack 15 4 9 3 May 16
Jokers And Rogues (IRE)from John Wade · then Dianne Sayer 14 3 6 21 Feb 19
Oh So Gigolo (IRE)from Nicky Henderson · then Andrew Hamilton 10 1 2 11 Nov 17
Runswick Relax (GB)from John Wade 9 3 6 28 Apr 16
Onwiththeparty (GB)from Chris Gordon · then Dianne Sayer 8 1 3 12 Dec 18
All 39 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 39 horses listed, 34 arrived from another yard in our archive, most often from Dianne Sayer (3) and Evelyn Slack (3); 5 had their first archived run for this yard.

16 have since run for another yard, most often for Dianne Sayer (11); 23 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
24173130263223130221113
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 riderHenry Brooke
25% of all rides
29.7% SR · A/E 1.53
RiderRWSR£1
Henry Brooke 74 22 29.7% +61.67
Colm McCormack 36 3 8.3% −18.00
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2015→
62
Archived wins
£306k
Prize money
2016
Best season · 29 wins
Beeno (IRE) — Banks Lyon Jewellers Lady Riders' Handicap Hurdle Cartmel · Jul 2017 · Class 3
£9,747
Beeno (IRE) — Totepool Cartmel Cup Handicap Hurdle Cartmel · Aug 2017 · Class 3
£6,256
Beeno (IRE) — Sedgefield Bookmakers Handicap Hurdle Sedgefield · Feb 2018 · Class 3
£6,238
Notable horses
Tonto's Spirit (GB) Discoverie (GB) Italian Riviera (GB) Almost Gemini (IRE) My Friend George (GB) Beeno (IRE)

Sires in the string

progeny record · win % by ground and trip
Authorized (IRE) 30.3% · 10–33
Progeny have won 13.5% of 7,019 runs since 2008 (543 horses). Weakest on Standard (AW) going: 9.3% from 1,043. Strongest beyond 3m (all codes): 19.8% from 126. Weakest over 6f – 7f (all codes): 6.4% from 267.
Runyon (IRE) 28% · 7–25
Progeny have won 8.3% of 300 runs since 2008 (29 horses).
Alflora (IRE) 23.8% · 5–21
Progeny have won 9.8% of 5,312 runs since 2008 (535 horses).
Poet's Voice (GB) 11.1% · 2–18
Progeny have won 10% of 6,036 runs since 2008 (384 horses). Strongest on Heavy going: 13.4% from 262. Strongest at trips under 6f (all codes): 13% from 492. Weakest over 2m5f – 3m (all codes): 6.3% from 142.
Dubawi (IRE) 11.8% · 2–17
Progeny have won 18.4% of 12,918 runs since 2008 (1,517 horses). Weakest at trips under 6f (all codes): 9.8% from 429.
Dylan Thomas (IRE) 23.5% · 4–17
Progeny have won 10.5% of 7,486 runs since 2008 (533 horses). Strongest at trips under 6f (all codes): 17.7% from 192.
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 15 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 297 · newest first

The latest 50 of 297 archived runners, newest first. The full record runs from 16 February 2015 to 23 February 2019.

DateCourseHorseRaceFinishSP
23 Feb 19 Newcastle Summer Lightening (GB)J: Conor O'Farrell Think Smart At Vertem Mares' Novices' HurdleClass 4 · 16f · Good To Soft · 9 ran 6th 20/1
21 Feb 19 Sedgefield Jokers And Rogues (IRE)J: Conor O'Farrell Weatherbys Stallion Book Handicap ChaseClass 5 · 16.5f · Good · 12 ran 5th 6/4F
29 Jan 19 Newcastle Summer Lightening (GB)J: Conor O'Farrell Corporate Funfairs Novices' HurdleClass 4 · 16f · Soft · 15 ran 11th 80/1
27 Jan 19 Sedgefield Legalized (GB)J: Conor O'Farrell RaceBets Racing From Over 40 Countries Mares' Novices' HurdleClass 4 · 20f · Soft · 8 ran 1st 4/5F
21 Jan 19 Sedgefield Jokers And Rogues (IRE)J: Conor O'Farrell Read Kieren Fallon Exclusively At Racebets Handicap ChaseClass 5 · 16.5f · Good To Soft · 9 ran 1st 3/1
20 Jan 19 Ayr Tonto's Spirit (GB)J: Conor O'Farrell Join Racing TV Now Novices' ChaseClass 4 · 16.5f · Good To Soft · 5 ran 2nd 6/1
05 Jan 19 Newcastle (AW) Summer Lightening (GB)J: Ross Turner EBF/Equine Products Mares' Standard NH Flat Race (Conditionals And Amateurs)Class 5 · 16.5f · Standard To Slow · 7 ran 5th 11/1
01 Jan 19 Catterick Legalized (GB)J: Colm McCormack Happy New Year Novices' HurdleClass 4 · 19.5f · Good · 6 ran 2nd 11/1
18 Dec 18 Catterick Calliope (GB)J: Conor O'Farrell Buy Your 2019 Annual Badge Today Novices' HurdleClass 4 · 19.5f · Soft · 11 ran 2nd 8/1
12 Dec 18 Hexham Onwiththeparty (GB)J: Colm McCormack Half Price Admission Thursday 20th December Handicap HurdleClass 4 · 23.5f · Soft · 11 ran 6th 12/1
09 Dec 18 Kelso Jokers And Rogues (IRE)J: Conor O'Farrell Andersons Award Winning Butcher North Berwick Handicap HurdleClass 4 · 16f · Good To Soft · 11 ran 3rd 16/1
27 Nov 18 Southwell (AW) Port Soif (GB)J: Miss Anna Slack sunracing.co.uk Amateur Riders' HandicapClass 6 · 8f · Standard To Slow · 13 ran 9th 8/1
23 Nov 18 Catterick Calliope (GB)J: Conor O'Farrell Jump Season Starts Now Novices' HurdleClass 4 · 15.5f · Good · 13 ran 8th 14/1
23 Nov 18 Catterick Legalized (GB)J: Colm McCormack Jump Season Starts Now Novices' HurdleClass 4 · 15.5f · Good · 13 ran 4th 50/1
16 Nov 18 Newcastle Fast And Friendly (IRE)J: Colm McCormack Logico Standard Open NH Flat RaceClass 5 · 16f · Good · 10 ran 6th 40/1
16 Nov 18 Newcastle Legalized (GB)J: Conor O'Farrell Baldwins Accountants And Finance Novices' HurdleClass 4 · 16f · Good · 7 ran 5th 40/1
10 Nov 18 Kelso Summer Lightening (GB)J: Conor O'Farrell William Hill Leading Racecourse Bookmaker Mares' Standard Open NH Flat RaceClass 5 · 16f · Good · 11 ran 9th 11/1
08 Nov 18 Sedgefield Calliope (GB)J: Conor O'Farrell Best Odds Guaranteed With blacktype.bet Maiden HurdleClass 5 · 17f · Good · 5 ran 3rd 16/1
08 Nov 18 Sedgefield Onwiththeparty (GB)J: Colm McCormack Newcastle Flooring Co Ltd Handicap HurdleClass 4 · 27f · Good · 8 ran 5th 10/1
03 Nov 18 Ayr Tonto's Spirit (GB)J: Colm McCormack Tennent's Cup Scottish Champion Hurdle Trial Handicap HurdleClass 2 · 16f · Good · 7 ran 3rd 16/1

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 Kenneth Slack's strike rate?
Kenneth Slack has won 62 of 297 runners since 2008, a strike rate of 20.9% (as at 15 October 2026). Figures are computed from our own results archive.
Which course does Kenneth Slack do best at?
Sedgefield by strike rate: 22 wins from 77 runners (28.6%) 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 Kenneth Slack?
Henry Brooke, with 74 runners since 2008 — 25% of the total. That pairing has won 22 (29.7%).
What is Kenneth Slack's Fair A/E?
1.28, from 297 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 15 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).