What is J A Stack's strike rate?

J A Stack has won 165 of 1,620 runners since 2008, a strike rate of 10.2% (as at 22 October 2026). Figures are computed from our own results archive.

Which course does J A Stack do best at?

Navan by strike rate: 14 wins from 86 runners (16.3%) 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 J A Stack?

Chris Hayes, with 545 runners since 2008 — 34% of the total. That pairing has won 62 (11.4%).

Is J A Stack in form?

Too few runners in the last 14 days to read — 8 runners, which is not a sample we will draw a conclusion from.

What is J A Stack's Fair A/E?

1.03, from 1,616 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.

Trainer profile

J A Stack

1,620 runners in the lifetime window · 282 individual horses

As at 22 Oct 2026 · KTB archive: 2005–present, updated daily

Won yesterday Last runner yesterday 100% of runners on the flat

Last 5 seasons Lifetime (2017→)

from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it

165–1,620

Wins / Runs

10.2%

Strike rate

n=1,620

480 (30%)

Placed

1.03

Fair A/E

n=1,616 · 0.85 incl. margin

−208.89

£1 level stake

n=1,620 at SP · −12.9%

£4.33m

Prize money (window)

Strike by season

11.9%

KTB Yard Profile

Sends out around 90 runners a season, almost all on the flat, winning with 10% of them — beating the margin-free market read across the lifetime window (Fair A/E 1.03). New recruits from other yards win at 13% first time out (32 runs).

Deterministic profile computed from 1,620 archived runs (lifetime window) · updated 22 Oct 2026

KTB at a glance Fires Mar–Apr Fresh horses: 11.6% 35.4% when favourite Chris Hayes: 11.4% from 545 New recruits: 12.5% Claiming riders: 10.4% Sends off the favourite in 9% of races

The read

The record is strongest at Navan (16.3%, n=86), clear of the yard's 10.2% baseline. It is weakest at Fairyhouse (2.5% over 40 runners) — the widest gap in the record. A horse in first-time headgear has been a poor signal at 5.8% (n=138, Fair A/E 0.67). Chris Hayes rides 34% of the entries and matches the yard's average almost exactly (11.4%, A/E 0.96). The yard also reads well on Heavy going (19.5%, n=174) and off a 0-7-day break (20.6%, n=68). 23 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Jersey Stakes at Ascot (Jun 2026, £99,243). Seasonally, the yard fires Mar–Apr.

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

Yard patterns

the angles behind the record · vs 10.2% baseline

Fresh · 61+ days off

11.6%+1.4

n=275 · A/E 1.14 · £1 −41.72

New recruits · first run for the yard

12.5%+2.3

n=32 · A/E 1.15 · £1 −9.14

Debutants · first career start

7.6%−2.6

n=250 · A/E 1.06 · £1 +0.21

First-time headgear · true-first definition

5.8%−4.4

n=138 · A/E 0.67 · £1 −69.35

Headgear returns · back on after a bare run

10%−0.2

n=20 · A/E 1.08 · £1 −10.00

When favourite

35.4%

n=144 · A/E 1.21 · £1 +7.13

Claiming riders · a claimer in the saddle

10.4%+0.2

n=278 · A/E 1.08 · £1 −64.19

Group / Graded races · pattern & listed

7.5%−2.7

n=305 · A/E 0.91 · £1 +76.00

Each tile is the record in that situation vs the 10.2% 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

On Heavy going 19.5% vs 10.2% · n=174

Off a 0-7-day break 20.6% vs 10.2% · n=68

With Wayne Lordan 1.9% vs 10.2% · n=53

At Fairyhouse 2.5% vs 10.2% · n=40

With Conor Maxwell 2.6% vs 10.2% · n=39

At Navan 16.3% vs 10.2% · n=86

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 1,614 164 10.2% −215.89

Hurdle 3 1 33.3% +10.00

NH Flat 3 0 0% −3.00

Going

GoingRWSR£1

Good 512 45 8.8% −41.20

Soft 419 45 10.7% −64.05

Standard (AW) 241 26 10.8% −109.93

Heavy 174 34 19.5% +79.67

Good to Firm 149 8 5.4% −71.13

Good to Soft 125 7 5.6% −2.25

Courses

CourseRWSR£1

Curragh 355 25 7% −84.90

Dundalk (AW) 240 25 10.4% −116.93

Naas 180 21 11.7% +49.70

Cork 137 20 14.6% +3.93

Leopardstown 114 6 5.3% −69.25

Navan 86 14 16.3% +21.32

Gowran Park 80 10 12.5% +34.08

Tipperary 77 7 9.1% −29.43

Killarney 58 8 13.8% −12.34

Listowel 48 4 8.3% −7.25

Limerick 43 5 11.6% +13.00

Fairyhouse 40 1 2.5% −35.67

Galway 34 3 8.8% +11.25

Roscommon 21 1 4.8% −18.62

Ayr 18 2 11.1% +5.00

Class

ClassRWSR£1

Class 1 306 24 7.8% +81.00

Class 2 10 1 10% −4.00

Class 4 1 0 0% −1.00

Class 5 1 1 100% +7.00

Market position

In the bettingRWSRA/E£1

Favourite 170 53 31.2% 1.12 −9.87

2nd–3rd fav 330 51 15.5% 0.94 −66.52

4th–6th fav 566 43 7.6% 1.04 −77.50

7th+ in betting 554 18 3.2% 1.05 −55.00

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

Tooreen Angel (IRE) 26 2 9 13 Aug 22

Back To Brussels (IRE) 22 2 5 12 Sep 21

Shifted Strategy (IRE)then W J Martin 22 1 6 1 Jun 21

Gatsby Cap (IRE)then Patrick Joseph Hayes 19 2 5 21 Aug 20

Chazzesmee (IRE) 18 3 6 2 Nov 25

Son Of Rest (GB)from T Stack 18 3 6 7 Nov 20

My Eyes Adore You (IRE) 17 2 6 14 Oct 23

Bodhi Bear (IRE) 16 4 7 19 Sep 26

Star Of Cashel (IRE)then Adrian McGuinness 16 3 6 9 Oct 21

American Lady (IRE) 16 1 4 16 Oct 20

Gottardo (IRE)then Ed Dunlop 16 1 5 24 Oct 18

Pita Pinta (IRE) 15 3 4 23 Oct 22

Showing the 60 most-raced of the 282 horses sent out in this window — each ran at least 8 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, 1 arrived from another yard in our archive; 59 had their first archived run for this yard.

15 have since run for another yard, most often for Patrick Joseph Hayes (2); 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

Small sample

1 from 8

Only 8 runners in the last 14 days — too few to read against the baseline (gate: n≥15). The card states the sample and stays neutral.

When the yard fires

strike by month, lifetime

JFMAMJJASOND

814151811611991088

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 riderChris Hayes

34% of all rides
11.4% SR · A/E 0.96

RiderRWSR£1

Chris Hayes 545 62 11.4% −22.54

Andrew Slattery 215 22 10.2% −13.38

Seamie Heffernan 155 22 14.2% −15.80

J M Sheridan 155 18 11.6% −44.85

Mark Enright 138 14 10.1% +71.36

Wayne Lordan 53 1 1.9% −43.00

Conor Maxwell 39 1 2.6% −5.00

Killian Hennessy 37 3 8.1% −7.00

W J Lee 33 3 9.1% −22.04

Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2017→

165

Archived wins

Pattern / graded wins

£4.33m

Prize money

2017

Best season · 21 wins

Thesecretadversary (IRE) — Jersey Stakes (Group 3) Ascot · Jun 2026 · Group 3

£99,243

Son Of Rest (GB) — William Hill Ayr Gold Cup (Heritage Handicap) Ayr · Sep 2018 · Class 2

£80,890

Nola Soul (USA) — Chesham Stakes (Listed) Ascot · Jun 2026 · Listed

£70,888

Notable horses

Bodhi Bear (IRE) Lady Wannabe (IRE) Two Stars (IRE) Thesecretadversary (IRE) Chazzesmee (IRE) Son Of Rest (GB)

Sires in the string

progeny record · win % by ground and trip

Starspangledbanner (AUS) 12.5% · 38–304

Progeny have won 11.1% of 7,151 runs since 2008 (659 horses). Strongest at trips under 6f (all codes): 14.5% from 1,190.

No Nay Never (USA) 12% · 14–117

Progeny have won 12.1% of 6,310 runs since 2008 (705 horses). Weakest on Good to Soft going: 9% from 612. Weakest over 1m5f – 2m (all codes): 7.6% from 185.

Choisir (AUS) 12.3% · 10–81

Progeny have won 10.7% of 5,779 runs since 2008 (392 horses).

Holy Roman Emperor (IRE) 11% · 8–73

Progeny have won 10.3% of 11,867 runs since 2008 (949 horses). Weakest over 2m1f – 2m4f (all codes): 5.9% from 305.

Galileo (IRE) 10% · 6–60

Progeny have won 14.5% of 18,191 runs since 2008 (1,776 horses). Strongest over 6f – 7f (all codes): 18.2% from 1,383. Weakest over 2m5f – 3m (all codes): 9.3% from 889.

Zoffany (IRE) 3.6% · 2–56

Progeny have won 9.9% of 10,762 runs since 2008 (799 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 22 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 1,620 · newest first

The latest 50 of 1,620 archived runners, newest first. The full record runs from 26 March 2017 to 21 October 2026.

DateCourseHorseRaceFinishSP

21 Oct 26 Navan (IRE) Grande Cuvee (IRE)J: Seamie Heffernan Navan Racing Festival Advanced Price Tickets On Sale Now Maiden5f · Yielding · 9 ran 2nd 7/4F

21 Oct 26 Navan (IRE) Eyeconic (IRE)J: Seamie Heffernan Irish Stallion Farms EBF Maiden5f · Yielding · 10 ran 1st 7/2

20 Oct 26 Curragh (IRE) Templenoe (IRE)J: Seamie Heffernan Always Gambling Responsibly With 1xBet.ie Handicap8f · Yielding · 23 ran 19th 18/1

20 Oct 26 Curragh (IRE) Eagle Eclipse (IRE)J: Seamie Heffernan 1xBet.ie Supporting October Racing Irish EBF Maiden6f · Yielding · 13 ran 9th 3/1

17 Oct 26 Leopardstown (IRE) Saxonian (IRE)J: Seamie Heffernan Irish EBF (C & G) Maiden (Smullen Series)8.5f · Good · 15 ran 10th 100/1

11 Oct 26 Naas (IRE) Bay Colony (IRE)J: Seamie Heffernan Irish Stallion Farms EBF Garnet Stakes (Listed)Class 1 · 8f · Soft · 16 ran 6th 10/1

10 Oct 26 Naas (IRE) Saint Agatha (IRE)J: Ben Coen RFL Steels Stakes (Listed)Class 1 · 6f · Soft · 9 ran 9th 12/1

10 Oct 26 Naas (IRE) Two Stars (IRE)J: J M Sheridan RFL Steels Stakes (Listed)Class 1 · 6f · Soft · 9 ran 3rd 3/1J

04 Oct 26 Longchamp (FR) Thesecretadversary (IRE)J: C. Soumillon Qatar Prix de la Foret (Group 1)Class 1 · 7f · Good To Soft · 8 ran 6th 9/4F

04 Oct 26 Curragh (IRE) Focaccia (IRE)J: Seamie Heffernan Hailey Equine Irish EBF Brigid's Pastures Stakes (Listed)Class 1 · 6f · Soft · 16 ran 13th 50/1

29 Sep 26 Cork (IRE) Saint Agatha (IRE)J: Seamie Heffernan Irish Stallion Farms EBF Fillies Handicap6f · Soft · 8 ran 1st 6/1

27 Sep 26 Curragh (IRE) Exchange Student (IRE)J: Julian Pietropaolo Kwiff More Bang For Your Bet Nursery Handicap7f · Heavy · 10 ran 6th 5/2J

27 Sep 26 Curragh (IRE) Tourin (IRE)J: Gavin Ryan Celebrating County Kildare And Lexington Twinning Maiden6f · Heavy · 11 ran 8th 9/1

27 Sep 26 Curragh (IRE) Valentino Eclipse (IRE)J: Seamie Heffernan Celebrating County Kildare And Lexington Twinning Maiden6f · Heavy · 11 ran 1st 2/5F

26 Sep 26 Curragh (IRE) Eyeconic (IRE)J: Gavin Ryan Goffs Million7f · Yielding · 18 ran 12th 200/1

26 Sep 26 Curragh (IRE) My Lucky Journey (IRE)J: Seamie Heffernan Goffs Million7f · Yielding · 18 ran 5th 20/1

26 Sep 26 Curragh (IRE) Cardiff By The Sea (IRE)J: Julian Pietropaolo Kwiff Supercharged Joe McGrath Handicap5f · Yielding · 20 ran 2nd 18/1

22 Sep 26 Listowel (IRE) Bay Colony (IRE)J: Ben Coen Edmund & Josie Whelan Memorial Listowel Stakes (Listed)Class 1 · 8f · Yielding · 11 ran 4th 33/1

21 Sep 26 Fairyhouse (IRE) Honey Deuce (FR)J: Gavin Ryan Winter Festival Early Bird Ticket Claiming Race7f · Good · 6 ran 3rd 9/1

19 Sep 26 Ayr Bodhi Bear (IRE)J: Sam James Ladbrokes Ayr Gold Cup (Class 2 Heritage Handicap)Class 2 · 6f · Heavy · 24 ran 8th 40/1

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 J A Stack's strike rate?: J A Stack has won 165 of 1,620 runners since 2008, a strike rate of 10.2% (as at 22 October 2026). Figures are computed from our own results archive.
Which course does J A Stack do best at?: Navan by strike rate: 14 wins from 86 runners (16.3%) 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 J A Stack?: Chris Hayes, with 545 runners since 2008 — 34% of the total. That pairing has won 62 (11.4%).
Is J A Stack in form?: Too few runners in the last 14 days to read — 8 runners, which is not a sample we will draw a conclusion from.
What is J A Stack's Fair A/E?: 1.03, from 1,616 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.