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Trainer profile

John J Nallen

209 runners in the last 5 seasons · 23 individual horses
As at 22 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner 10 days ago
Last 5 seasons Lifetime (2008→)
from 1 Jan 2022
22–209
Wins / Runs
10.5%
Strike rate
n=209
87 (42%)
Placed
0.91
Fair A/E
n=208 · 0.74 incl. margin
−7.56
£1 level stake
n=209 at SP · −3.6%
£393k
Prize money (window)
Strike by season
12.5%
KTB Yard Profile

Sends out around 40 runners a season, across both codes, winning with 11% of them — a touch below the margin-free market read across five seasons (Fair A/E 0.91). With a claiming rider up the record reads 12% (116 runs).

Deterministic profile computed from 209 archived runs (last 5 seasons) · updated 22 Oct 2026
KTB at a glance Sean D Bowen: 8.2% from 73 Claiming riders: 12.1%
The read

It is weakest at Dundalk (AW) (2.4% over 41 runners) — the largest sample in the record, and the widest gap. Horses returning fresh after 61+ days have been a poor signal at 5.4% (n=37, Fair A/E 0.53). Sean D Bowen rides 35% of the entries and sits below the yard's average (8.2% vs 10.5%, A/E 0.87). The yard also reads well over 1m5f – 2m (16.3%, n=49) and on Good going (15.6%, n=45). The record reads poorly on Standard (AW) going — 2.4% over 41 runners, 8.1pts below the baseline. One Group or Graded win sits in the archive record — the biggest prize the yard has landed: the Edmund & Josie Whelan Memorial Listowel Stakes at Listowel (Sep 2025, £26,550). The stable star of the record: Cristal Clere (IRE) — 5 wins from 42 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 10.5% baseline
Fresh · 61+ days off
5.4%−5.1
n=37 · A/E 0.53 · £1 −3.00
New recruits · first run for the yard
25%+14.5
n=4 · A/E 1.49 · £1 −1.00
Debutants · first career start
15.8%+5.3
n=19 · A/E 1.33 · £1 −1.70
First-time headgear · true-first definition
0%−10.5
n=4 · A/E 0.00 · £1 −4.00
Headgear returns · back on after a bare run
18.2%+7.7
n=11 · A/E 2.07 · £1 +3.33
When favourite
25%
n=20 · A/E 0.76 · £1 −8.55
Claiming riders · a claimer in the saddle
12.1%+1.6
n=116 · A/E 1.12 · £1 +38.96
Group / Graded races · pattern & listed
7.7%−2.8
n=13 · A/E 1.01 · £1 −6.50

Each tile is the record in that situation vs the 10.5% 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
At Dundalk (AW) 2.4% vs 10.5% · n=41
On Standard (AW) going 2.4% vs 10.5% · n=41
Over 6f – 7f 4.4% vs 10.5% · n=45
Over 1m5f – 2m 16.3% vs 10.5% · n=49
On Good going 15.6% vs 10.5% · n=45
On Heavy going 15.2% vs 10.5% · n=33
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 153 12 7.8% +0.83
Hurdle 43 6 14% −14.02
NH Flat 13 4 30.8% +5.63

Going

GoingRWSR£1
Soft 67 7 10.4% +37.46
Good 45 7 15.6% +3.23
Standard (AW) 41 1 2.4% −37.75
Heavy 33 5 15.2% +4.75
Good to Soft 22 2 9.1% −14.25
Good to Firm 1 0 0% −1.00

Courses

CourseRWSR£1
Dundalk (AW) 41 1 2.4% −37.75
Roscommon 19 3 15.8% −2.34
Listowel 17 1 5.9% −10.50
Galway 13 3 23.1% +69.33
Gowran Park 13 1 7.7% +13.00
Curragh 11 1 9.1% −1.00
Killarney 10 1 10% −3.50
Tipperary 9 1 11.1% −5.75
Naas 8 1 12.5% −3.50
Leopardstown 8 3 37.5% +5.25
Cork 7 1 14.3% −5.20
Ballinrobe 7 1 14.3% −2.50
Navan 6 0 0% −6.00
Limerick 6 1 16.7% −3.90
Punchestown 6 0 0% −6.00

Class

ClassRWSR£1
Class 1 13 1 7.7% −6.50
Class 4 3 0 0% −3.00
Class 3 2 0 0% −2.00

Market position

In the bettingRWSRA/E£1
Favourite 23 6 26.1% 0.84 −7.05
2nd–3rd fav 53 7 13.2% 0.80 −17.84
4th–6th fav 76 6 7.9% 0.94 −29.67
7th+ in betting 57 3 5.3% 1.63 +47.00
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
Cristal Clere (IRE) 42 5 17 4 Oct 26
Mercurial (IRE)from Tom Dascombe 37 1 15 12 Oct 26
Firebrand (GER) 23 2 10 4 Oct 26
Pinball Wizard (IRE)from Clive Cox · then John C McConnell 22 1 10 21 May 25
Minella Mate (IRE) 17 2 9 9 May 26
Minella Rockett (IRE) 11 3 6 12 Oct 26
Minella Hollow (IRE) 9 3 4 3 Oct 26
Minella Buoy (GB) 9 0 4 20 Sep 26
Minella Study (GB)then Adam Nicol 6 1 2 21 Jul 25
Minella Butterfly (GB) 5 0 0 24 Apr 24
Minella Boss (IRE)then Oliver McKiernan 4 0 1 30 May 25
Minella Buddy (IRE) 4 0 0 17 May 24
All 23 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 23 horses listed, 4 arrived from another yard in our archive, most often from Tom Dascombe (2); 19 had their first archived run for this yard.

11 have since run for another yard; 12 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
0 from 2
Only 2 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, 5 seasons
JFMAMJJASOND
000149112018981214
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 riderSean D Bowen
35% of all rides
8.2% SR · A/E 0.87
RiderRWSR£1
Sean D Bowen 73 6 8.2% −22.50
Seamie Heffernan 34 2 5.9% −23.17
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2005→
35
Archived wins
1
Pattern / graded wins
£515k
Prize money
2023
Best season · 7 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.
Cristal Clere (IRE) — Edmund & Josie Whelan Memorial Listowel Stakes (Listed) Listowel · Sep 2025 · Listed
£26,550
Minella Rockett (IRE) — Tote Every Day Is A Money-Back Day Handicap Galway (IRE) · Jul 2026
£15,601
Minella Rockett (IRE) — TRM BIOACTIVE Energy Boost Handicap Naas (IRE) · Aug 2026
£15,000
Notable horses
Cristal Clere (IRE) Minella For Value (IRE) Minella Rockett (IRE) Minella Hollow (IRE) Firebrand (GER) Minella Mate (IRE)

Sires in the string

progeny record · win % by ground and trip
Harzand (IRE) 11.6% · 5–43
Progeny have won 13.3% of 1,092 runs since 2008 (139 horses). Strongest on Heavy going: 17% from 100. Weakest on Standard (AW) going: 7.1% from 126. Strongest over 2m1f – 2m4f (all codes): 16.5% from 242. Weakest over 1m – 1m1f (all codes): 9.1% from 121.
Prince Of Lir (IRE) 2.7% · 1–37
Progeny have won 8.9% of 1,372 runs since 2008 (104 horses). Strongest on Good to Firm going: 15% from 200.
Shantou (USA) 8.3% · 2–24
Progeny have won 13.6% of 7,819 runs since 2008 (539 horses). Strongest on Good to Firm going: 20.3% from 158.
Siyouni (FR) 8.7% · 2–23
Progeny have won 13% of 8,322 runs since 2008 (975 horses). Weakest on Heavy going: 9.3% from 454.
Dark Angel (IRE) 4.5% · 1–22
Progeny have won 11.3% of 21,881 runs since 2008 (1,594 horses). Strongest on Firm going: 15% from 107.
Golden Horn (GB) 0% · 0–13
Progeny have won 13.8% of 3,734 runs since 2008 (345 horses). Weakest on Heavy going: 9.3% from 161. Weakest over 6f – 7f (all codes): 8.2% from 232.
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 353 · newest first

The latest 50 of 353 archived runners, newest first. The full record runs from 19 January 2005 to 12 October 2026.

DateCourseHorseRaceFinishSP
12 Oct 26 Roscommon (IRE) Minella Rockett (IRE)J: Reese Holohan Roscommon Rated Race10.5f · Soft · 5 ran 4th 9/4J
12 Oct 26 Roscommon (IRE) Mercurial (IRE)J: Jimmy Dalton Guinness Handicap7.5f · Soft · 14 ran 3rd 5/1
04 Oct 26 Curragh (IRE) Cristal Clere (IRE)J: Jimmy Dalton 1xBet.ie Proud Supporters Of Irish Racing Handicap9f · Yielding · 10 ran 8th 16/1
04 Oct 26 Killarney (IRE) Firebrand (GER)J: Alan O'Sullivan Charlie Foley's Rated Novice Hurdle17f · Good To Yielding · 7 ran 2nd 100/30
03 Oct 26 Gowran Park (IRE) Minella Hollow (IRE)J: Daniel King BOYLE Sports Novice Hurdle (Grade 3)Class 1 · 16.5f · Good To Yielding · 6 ran 3rd 16/1
25 Sep 26 Listowel (IRE) Minella Hollow (IRE)J: Mr O McGill Listowel Races Supporters Club Failte Abhaile (Q.R.) Race In Memory Of Pat Scanlon14f · Good To Yielding · 13 ran 6th 10/1
22 Sep 26 Listowel (IRE) Cristal Clere (IRE)J: Seamie Heffernan Edmund & Josie Whelan Memorial Listowel Stakes (Listed)Class 1 · 8f · Yielding · 11 ran 5th 25/1
22 Sep 26 Listowel (IRE) Mercurial (IRE)J: Seamie Heffernan WTW Willis Towers Watson Handicap7f · Yielding · 11 ran 6th 9/1
20 Sep 26 Listowel (IRE) Minella Buoy (GB)J: Daniel King Kinisla Charleville Cheese 3-Y-O Hurdle16f · Good · 11 ran 3rd 15/8F
15 Sep 26 Punchestown (IRE) Minella Rockett (IRE)J: Seamie Heffernan Punchestown Premiere Weekend November 21st & 22nd Race9f · Good · 6 ran 2nd 5/4F
07 Sep 26 Galway (IRE) Firebrand (GER)J: Alan O'Sullivan Kenny Developments Maiden Hurdle16.5f · Yielding · 20 ran 1st 100/30
31 Aug 26 Roscommon (IRE) Minella Buoy (GB)J: W J Lee Roscommon Racecourse On Facebook Handicap12f · Good To Yielding · 16 ran 10th 4/1J
31 Aug 26 Roscommon (IRE) Mercurial (IRE)J: Seamie Heffernan Lidan Handicap7.5f · Yielding · 12 ran 3rd 11/1
23 Aug 26 Naas (IRE) Minella Rockett (IRE)J: Reese Holohan TRM BIOACTIVE Energy Boost Handicap10.5f · Good · 9 ran 1st 7/2J
22 Aug 26 Killarney (IRE) Minella Moon Shine (IRE)J: Daniel King ML Lynch Civil Engineering Ltd. Maiden Hurdle (Div II)16.5f · Good · 16 ran 4th 100/30
22 Aug 26 Killarney (IRE) Minella Hollow (IRE)J: Daniel King ML Lynch Civil Engineering Ltd. Maiden Hurdle (Div I)16.5f · Good · 16 ran 1st 11/2
20 Aug 26 Killarney (IRE) Minella Buoy (GB)J: Daniel King Sheahan's Pharmacy 3-Y-O Maiden Hurdle17f · Good · 11 ran 2nd 11/4
18 Aug 26 Roscommon (IRE) Mercurial (IRE)J: Darragh O'Sullivan WTW Willis Handicap7.5f · Good To Yielding · 14 ran 8th 14/1
10 Aug 26 Ballinrobe (IRE) Minella Buoy (GB)J: Daniel King C.J. Sheeran Ltd 3-Y-O Maiden Hurdle16.5f · Good · 13 ran 2nd 2/1F
06 Aug 26 Sligo (IRE) Firebrand (GER)J: Daniel King Kilcawley Construction Rated Novice Hurdle18f · Good · 5 ran 4th 4/1

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 John J Nallen's strike rate?
John J Nallen has won 22 of 209 runners since 2022, a strike rate of 10.5% (as at 22 October 2026). Figures are computed from our own results archive.
Which course does John J Nallen do best at?
Dundalk (AW) by strike rate: 1 wins from 41 runners (2.4%) since 2022. 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 John J Nallen?
Sean D Bowen, with 73 runners since 2022 — 35% of the total. That pairing has won 6 (8.2%).
Is John J Nallen in form?
Too few runners in the last 14 days to read — 2 runners, which is not a sample we will draw a conclusion from.
What is John J Nallen's Fair A/E?
0.91, from 208 runners with a computed fair probability since 2022. 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 22 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).