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Trainer profile

Daniel William O'Sullivan

334 runners in the lifetime window · 62 individual horses
As at 1 Nov 2026 · KTB archive: 2005–present, updated daily
Last runner 45 days ago
Last 5 seasons Lifetime (2008→)
from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it
12–334
Wins / Runs
3.6%
Strike rate
n=334
46 (14%)
Placed
0.85
Fair A/E
n=332 · 0.66 incl. margin
−131.00
£1 level stake
n=334 at SP · −39.2%
£238k
Prize money (window)
Strike by season
0%
KTB Yard Profile

Sends out around 20 runners a season, across both codes, winning with 4% of them — a touch below the margin-free market read across the lifetime window (Fair A/E 0.85).

Deterministic profile computed from 334 archived runs (lifetime window) · updated 1 Nov 2026
The read

Debutants struggle at 0% (n=48, Fair A/E 0.00). The market has consistently overbet runners with a claiming rider up: 2.7% strike, Fair A/E 0.75 and −82.50 to a £1 stake over 111 runners — those runners underperform what the price implies. The yard also reads well over 1m – 1m1f (10.4%, n=48). The record reads poorly over 1m5f – 2m — 0% over 41 runners, 3.6pts below the baseline. 2 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Irish Stallion Farms EBF 'Nasrullah' Handicap at Leopardstown (Jul 2023, £59,000). The stable star of the record: Benefit Night (IRE) — 5 wins from 34 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 3.6% baseline
Fresh · 61+ days off
1.8%−1.8
n=56 · A/E 0.46 · £1 −5.00
New recruits · first run for the yard
0%−3.6
n=10 · A/E 0.00 · £1 −10.00
Debutants · first career start
0%−3.6
n=48 · A/E 0.00 · £1 −48.00
First-time headgear · true-first definition
0%−3.6
n=18 · A/E 0.00 · £1 −18.00
Headgear returns · back on after a bare run
14.3%+10.7
n=7 · A/E 5.11 · £1 +4.00
When favourite
40%
n=5 · A/E 1.98 · £1 +2.00
Claiming riders · a claimer in the saddle
2.7%−0.9
n=111 · A/E 0.75 · £1 −82.50
Group / Graded races · pattern & listed
7.1%+3.5
n=14 · A/E 1.51 · £1 +20.00

Each tile is the record in that situation vs the 3.6% baseline — descriptive splits with the sample always shown, for you to weigh. 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. The same beliefs, tested across every yard and every GB and Irish race since 2005: Racing myths.

Notable angles

vs their own baseline
With Wayne Lordan 11.4% vs 3.6% · n=44
Over 1m – 1m1f 10.4% vs 3.6% · n=48
With a new jockey booking 0.6% vs 3.6% · n=154
With debutants 0% vs 3.6% · n=48
Over 1m5f – 2m 0% vs 3.6% · n=41
With W J Lee 0% vs 3.6% · n=40
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 211 9 4.3% −110.00
Chase 64 2 3.1% −13.00
Hurdle 45 1 2.2% +6.00
NH Flat 14 0 0% −14.00

Going

GoingRWSR£1
Good 74 3 4.1% −51.50
Soft 71 2 2.8% +14.00
Standard (AW) 65 2 3.1% −51.50
Heavy 60 3 5% −3.00
Good to Firm 35 2 5.7% −10.00
Good to Soft 25 0 0% −25.00
Firm 4 0 0% −4.00

Courses

CourseRWSR£1
Dundalk (AW) 65 2 3.1% −51.50
Cork 31 1 3.2% +10.00
Navan 23 1 4.3% −13.00
Gowran Park 23 1 4.3% +28.00
Naas 22 1 4.5% +12.00
Tipperary 21 0 0% −21.00
Punchestown 21 1 4.8% −4.00
Limerick 17 0 0% −17.00
Leopardstown 17 2 11.8% −1.00
Curragh 16 1 6.3% −10.00
Fairyhouse 13 0 0% −13.00
Killarney 11 1 9.1% +0.00
Thurles 9 0 0% −9.00
Kilbeggan 5 0 0% −5.00
Listowel 5 0 0% −5.00

Class

ClassRWSR£1
Class 1 14 1 7.1% +20.00
Class 3 3 0 0% −3.00
Class 2 2 0 0% −2.00

Market position

In the bettingRWSRA/E£1
Favourite 5 2 40% 1.98 +2.00
2nd–3rd fav 22 2 9.1% 0.66 −8.00
4th–6th fav 63 3 4.8% 0.69 −34.00
7th+ in betting 244 5 2% 0.86 −91.00
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
Long Journey Home (IRE)from John M Oxx · then Michael Butler 40 3 10 25 Nov 15
Benefit Night (IRE) 24 1 6 1 Mar 14
Larry Luso (IRE) 17 2 2 30 May 12
Moss Nation (GB) 15 0 2 2 Jul 15
Lake Louise (IRE) 15 2 5 23 Oct 13
Redstone Well (IRE) 11 3 6 13 Jul 23
Penelope's Charm (IRE) 10 0 3 3 Mar 25
Jay Pee M (IRE)then Terence O'Brien 10 0 2 15 May 24
Bold Perk (IRE)then David Pipe 10 0 1 18 Jul 10
Cross Border (GB)from Edward Lynam · then Gavin Cromwell 9 0 1 14 Aug 24
Cliadh Dubh (IRE) 7 0 0 28 Nov 25
Happy Hen (IRE) 7 0 1 5 Feb 16
Showing the 60 most-raced of the 62 horses sent out in this window — each ran at least 1 time. 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, 11 arrived from another yard in our archive, most often from Sean P Hennessy (2); 49 had their first archived run for this yard.

16 have since run for another yard, most often for David Pipe (2) and Michael Butler (2); 44 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
0063254441000
Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Jockey bookings

same window · biggest samples first
Go-to riderB M Cash
13% of all rides
2.2% SR · A/E 0.57
RiderRWSR£1
B M Cash 45 1 2.2% +6.00
Wayne Lordan 44 5 11.4% −3.50
W J Lee 40 0 0% −40.00
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2005→
19
Archived wins
2
Pattern / graded wins
£357k
Prize money
2007
Best season · 4 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.
Redstone Well (IRE) — Irish Stallion Farms EBF 'Nasrullah' Handicap (Premier Handicap) Leopardstown · Jul 2023
£59,000
Benefit Night (IRE) — Anglo Irish Bank Nas Na Riogh Novice Chase (Grade 2) Naas · Feb 2007 · Grade 2
£32,550
Benefit Night (IRE) — Lucan Racing Leinster National Handicap Chase (grade C) Naas · Mar 2011 · Grade C
£19,500
Notable horses
Benefit Night (IRE) Long Journey Home (IRE) Redstone Well (IRE) Larry Luso (IRE) Lake Louise (IRE) Scalded Cat (IRE)

Sires in the string

progeny record · win % by ground and trip
Dansili (GB) 7.5% · 3–40
Progeny have won 13.7% of 11,842 runs since 2008 (983 horses). Strongest on Firm going: 16.8% from 101. Weakest on Heavy going: 7.9% from 428. Weakest over 2m5f – 3m (all codes): 9.1% from 209.
Beneficial (GB) 4.2% · 1–24
Progeny have won 10.4% of 17,045 runs since 2008 (1,155 horses).
Moss Vale (IRE) 0% · 0–23
Progeny have won 8.3% of 2,012 runs since 2011 (145 horses).
Luso (GB) 11.8% · 2–17
Progeny have won 6.7% of 3,516 runs since 2008 (389 horses).
Haatef (USA) 13.3% · 2–15
Progeny have won 8.2% of 1,427 runs since 2012 (89 horses). Weakest on Good to Soft going: 2.7% from 112.
Cotai Glory (GB) 27.3% · 3–11
Progeny have won 11.5% of 3,947 runs since 2021 (389 horses). Strongest on Standard (AW) going: 14.6% from 1,416. Weakest on Soft going: 7.1% from 425.
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 1 Nov 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 452 · newest first

The latest 50 of 452 archived runners, newest first. The full record runs from 3 February 2005 to 17 September 2026.

DateCourseHorseRaceFinishSP
17 Sep 26 Naas (IRE) Lamar River (IRE)J: Darragh O'Sullivan Irish Stallion Farms EBF Claiming Maiden8f · Yielding · 10 ran 8th 250/1
08 Sep 26 Galway (IRE) Lamar River (IRE)J: Darragh O'Sullivan Irish Stallion Farms EBF Maiden8.5f · Soft · 5 ran 5th 200/1
01 Sep 26 Gowran Park (IRE) Blue Vega (IRE)J: Nathan Crosse Irish Stallion Farms EBF Maiden7f · Yielding · 14 ran 12th 100/1
30 Jun 26 Wexford Jetovango (IRE)J: Alan O'Sullivan Support The Irish Injured Jockeys Fund Beginners Chase19.5f · Good · 14 ran 3rd 150/1
27 Mar 26 Dundalk (AW) Lamar River (IRE)J: Darragh O'Sullivan Irish EBF Median Sires Series Maiden5f · Standard · 5 ran 5th 14/1
15 Mar 26 Curragh Willwallybethere (IRE)J: Darragh O'Sullivan Final Furlong Podcast With 1xBet.ie (C & G) Maiden8f · Heavy · 23 ran 22nd 300/1
15 Mar 26 Curragh Lamar River (IRE)J: Darragh O'Sullivan Topgear At Capital Stud Irish European Breeders Fund Maiden5f · Heavy · 7 ran 6th 40/1
28 Jan 26 Dundalk (AW) Willwallybethere (IRE)J: Darragh O'Sullivan Book Online At DundalkStadium.com Maiden10.5f · Standard · 14 ran 14th 80/1
28 Nov 25 Dundalk (AW) Cliadh Dubh (IRE)J: Seamie Heffernan Floodlit Fridays At Dundalk Stadium Nursery Handicap (0-60)6f · Standard · 14 ran 9th 18/1
12 Nov 25 Dundalk (AW) Cliadh Dubh (IRE)J: Chris Hayes Book Online At DundalkStadium.com Nursery Handicap6f · Standard · 14 ran 10th 50/1
24 Oct 25 Dundalk (AW) Cliadh Dubh (IRE)J: Chris Hayes Christmas Party Nights At Dundalk Book Now Nursery Handicap5f · Standard · 13 ran 11th 28/1
17 Oct 25 Dundalk (AW) Precious Pennies (IRE)J: Darragh O'Sullivan Book Online At DundalkStadium.com Maiden6f · Standard · 9 ran 9th 300/1
22 Sep 25 Fairyhouse Precious Pennies (IRE)J: Darragh O'Sullivan Kilminfoyle House Stud Fillies Maiden7f · Yielding · 14 ran 14th 400/1
02 Sep 25 Gowran Park Precious Pennies (IRE)J: Darragh O'Sullivan Irish Stallion Farms EBF Maiden7f · Good To Yielding · 16 ran 16th 125/1
25 Aug 25 Ballinrobe Jetovango (IRE)J: Darragh O'Keeffe On-Course Bookmakers Handicap Hurdle (0-100) (Div 2)22.5f · Good · 14 ran 14th 20/1
22 Aug 25 Killarney Decorated Elle (IRE)J: Darragh O'Sullivan Killarney Welcomes Bordeaux Racecourse Apprentice Handicap14.5f · Good · 12 ran 9th 66/1
09 Aug 25 Kilbeggan Jetovango (IRE)J: Darragh O'Keeffe Bernard Kenny Maiden Hurdle19f · Good To Yielding · 10 ran 3rd 66/1
04 Jul 25 Wexford Jetovango (IRE)J: E Walsh Thomas Donovan Construction Maiden Hurdle24.5f · Good · 14 ran 10th 150/1
08 Jun 25 Punchestown Jetovango (IRE)J: E Walsh John Dowling Memorial Maiden Hurdle23.5f · Good To Yielding · 15 ran 11th 80/1
19 May 25 Roscommon Cliadh Dubh (IRE)J: Darragh O'Sullivan Irish EBF Auction Series Maiden7.5f · Good · 9 ran 9th 33/1

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 Daniel William O'Sullivan's strike rate?
Daniel William O'Sullivan has won 12 of 334 runners since 2008, a strike rate of 3.6% (as at 1 November 2026). Figures are computed from our own results archive.
Which course does Daniel William O'Sullivan do best at?
Cork by strike rate: 1 wins from 31 runners (3.2%) 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.
What is Daniel William O'Sullivan's Fair A/E?
0.85, from 332 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 1 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).