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Trainer profile

Miss Margaret M O'Sullivan

127 runners in the lifetime window · 27 individual horses
As at 6 Nov 2026 · KTB archive: 2005–present, updated daily
Last runner May 2012 91% of runners over jumps
Last 5 seasons Lifetime (2008→)
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.
6–127
Wins / Runs
4.7%
Strike rate
n=127
22 (17%)
Placed
0.85
Fair A/E
n=127 · 0.62 incl. margin
−68.75
£1 level stake
n=127 at SP · −54.1%
£77,593
Prize money (window)
Strike by season
0%
KTB Yard Profile

Sent out around 30 runners a season, almost all over hurdles and fences, winning with 5% of them — a touch below the margin-free market read across the lifetime window (Fair A/E 0.85).

Deterministic profile computed from 127 archived runs (lifetime window) · updated 6 Nov 2026
KTB at a glance Fresh horses: 5.7%
The read

Runners with a claiming rider up have been a poor signal at 0% (n=39, Fair A/E 0.00). The yard also read well off a 31-60-day break (12.1%, n=33) and on Heavy going (10.8%, n=37). The record read poorly off a 15-30-day break — 0% over 31 runners, 4.7pts below the baseline.

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

Yard patterns

the angles behind the record · vs 4.7% baseline
Fresh · 61+ days off
5.7%+1.0
n=35 · A/E 1.44 · £1 −7.00
New recruits · first run for the yard
5.9%+1.2
n=17 · A/E 1.64 · £1 −2.00
Debutants · first career start
0%−4.7
n=7 · A/E 0.00 · £1 −7.00
First-time headgear · true-first definition
0%−4.7
n=9 · A/E 0.00 · £1 −9.00
Headgear returns · back on after a bare run
0%−4.7
n=4 · A/E 0.00 · £1 −4.00
When favourite
20%
n=5 · A/E 1.00 · £1 −2.25
Claiming riders · a claimer in the saddle
0%−4.7
n=39 · A/E 0.00 · £1 −39.00
Group / Graded races · pattern & listed
0%−4.7
n=5 · A/E 0.00 · £1 −5.00

Each tile is the record in that situation vs the 4.7% 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
Off a 31-60-day break 12.1% vs 4.7% · n=33
On Heavy going 10.8% vs 4.7% · n=37
With claiming riders up 0% vs 4.7% · n=39
Over 2m5f – 3m 9.7% vs 4.7% · n=31
Off a 15-30-day break 0% vs 4.7% · n=31
Over 1m5f – 2m 0% vs 4.7% · n=30
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 73 3 4.1% −42.25
Chase 33 3 9.1% −5.50
Flat 11 0 0% −11.00
NH Flat 10 0 0% −10.00

Going

GoingRWSR£1
Soft 47 1 2.1% −44.25
Heavy 37 4 10.8% +3.50
Good 20 1 5% −5.00
Good to Firm 12 0 0% −12.00
Good to Soft 10 0 0% −10.00
Firm 1 0 0% −1.00

Courses

CourseRWSR£1
Fairyhouse 17 1 5.9% +0.00
Cork 14 1 7.1% −9.50
Gowran Park 14 1 7.1% −1.00
Limerick 13 1 7.7% −7.00
Clonmel 7 0 0% −7.00
Galway 7 0 0% −7.00
Killarney 6 0 0% −6.00
Thurles 6 1 16.7% −3.25
Punchestown 6 0 0% −6.00
Tipperary 4 0 0% −4.00
Wexford 4 0 0% −4.00
Naas 4 0 0% −4.00
Navan 4 0 0% −4.00
Roscommon 4 0 0% −4.00
Downpatrick 3 0 0% −3.00

Class

ClassRWSR£1
Class 1 6 0 0% −6.00

Market position

In the bettingRWSRA/E£1
Favourite 6 1 16.7% 0.92 −3.25
2nd–3rd fav 13 1 7.7% 0.64 −8.50
4th–6th fav 30 2 6.7% 0.95 −11.00
7th+ in betting 78 2 2.6% 0.87 −46.00
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
87.7% completed · 106 obstacle runners (chases & hurdles)
CodeRCompFURPUBDOth
Chase 33 78.8% 1 1 5 0 0
Hurdle 73 91.8% 0 0 4 0 2
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
Indifference Curve (FR)from Patrick Rafter 21 2 9 9 Feb 12
Rebel Chief (IRE)from T M Walsh · then Eugene M O'Sullivan 14 1 4 28 Jul 10
According To Lizzy (IRE)from W J Austin 9 0 3 15 May 12
Rowlands Express (IRE)from S J Treacy · then Gordon Elliott 8 0 0 17 Feb 10
Jog On (IRE)from Patrick Rafter 7 1 1 15 Mar 09
Alison's Choice (IRE) 6 0 0 2 Sep 10
Irish Soul (IRE)from C Hennessy · then J Motherway 6 0 1 13 Jul 10
Idol (GER)from P A Fahy 5 0 0 17 Oct 09
Arc Lemanique (GER)from P A Fahy 5 0 1 3 Oct 08
Nancy's Castle (IRE)from Eamon Tyrrell 5 0 0 1 Oct 08
Mulligans Pursuit (IRE)from Mark Usher 5 0 0 5 Apr 08
Rolling Mist (IRE)from M P Sunderland 4 0 0 21 Jul 08
All 27 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 27 horses listed, 20 arrived from another yard in our archive, most often from Patrick Rafter (4) and P A Fahy (3); 7 had their first archived run for this yard.

6 have since run for another yard; 21 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
056680000909
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
RiderRWSR£1
Andrew J McNamara 23 2 8.7% −7.25
Davy Russell 14 1 7.1% −8.00
Lenny Flynn 7 0 0% −7.00
Robbie Power 7 1 14.3% +10.00
John Cullen 5 0 0% −5.00
Mr D Murphy 5 0 0% −5.00
Sean McDermott 5 0 0% −5.00
Niall P Madden 5 0 0% −5.00
Mr M J O'Connor 4 1 25% +0.50
Adrian Lane 4 0 0% −4.00
Tom Doyle 4 1 25% +11.00
Barry Geraghty 3 0 0% −3.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2007→
6
Archived wins
£79,795
Prize money
2008
Best season · 4 wins
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.
Jog OnI (IRE) — Mullins Electrical Beginners Chase Limerick (IRE) · Mar 2008
£11,056
Indifference Curve (FR) — Cork Racecourse (Q.R.) Beginners Chase Cork · Apr 2010
£8,970
Cheeky (IRE) — Gowran Park Racing Club 2010 Maiden Hurdle Gowran Park · Dec 2009
£7,256
Notable horses
Indifference Curve (FR) Rebel Chief (IRE) Karen Mag (IRE) Cheeky (IRE) Jog OnI (IRE)

Sires in the string

progeny record · win % by ground and trip
Oscar (IRE) 9.1% · 2–22
Progeny have won 10.9% of 16,543 runs since 2008 (1,456 horses). Strongest on Standard (AW) going: 18.1% from 105.
Bob Back (USA) 9.5% · 2–21
Progeny have won 11.8% of 3,724 runs since 2008 (338 horses).
Accordion (IRE) 0% · 0–9
Progeny have won 10.8% of 3,309 runs since 2008 (327 horses).
Saddlers' Hall (IRE) 0% · 0–9
Progeny have won 7.7% of 4,861 runs since 2008 (460 horses).
Kadeed (IRE) 14.3% · 1–7
Progeny have won 6.5% of 245 runs since 2008 (24 horses). Strongest over 2m1f – 2m4f (all codes): 9.6% from 114.
Alderbrook (GB) 0% · 0–6
Progeny have won 9.7% of 3,293 runs since 2008 (299 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 6 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 132 · newest first

The latest 50 of 132 archived runners, newest first. The full record runs from 14 December 2007 to 28 May 2012.

DateCourseHorseRaceFinishSP
28 May 12 Ballinrobe Definite Impulse (IRE)J: Mr S G Carey Ballinrobe Gaa Club 125th Anniversary Mares Flat Race16f · Good To Firm · 16 ran 16th 25/1
24 May 12 Tipperary Trixiebarry (IRE)J: Mr B M Linehan P2p.ie (c & G) Point-to-point Flat Race18f · Good To Firm · 17 ran 11th 16/1
15 May 12 Killarney According To Lizzy (IRE)J: Phillip Enright Irish Stallion Farms E.B.F. Beginners Chase17f · Good · 13 ran 10th 33/1
23 Apr 12 Cork Definite Impulse (IRE)J: Phillip Enright Friday Evening Racing Maiden Hurdle16f · Yielding To Soft · 24 ran SU 33/1
09 Apr 12 Cork According To Lizzy (IRE)J: Mr J W Hannon Friday Evening Racing At Cork Racecourse (Q.R.) Maiden Hurdle24f · Yielding To Soft · 19 ran 6th 8/1
09 Feb 12 Thurles Indifference Curve (FR)J: Barry Geraghty Tote Placepot Races 1 to 6 Chase22f · Soft To Heavy · 11 ran PU 13/2
27 Dec 11 Chepstow Indifference Curve (FR)J: William Kennedy Coral Welsh National (Grade 3 Handicap Chase)Class 1 · 29f · Heavy · 20 ran PU 33/1
15 Dec 11 Gowran Park According To Lizzy (IRE)J: Davy Russell Gowran Park Thanks All Its Customers In 2011 Mares Handicap Hurdle (80-116)20f · Soft To Heavy · 13 ran PU 9/2
16 Nov 11 Fairyhouse According To Lizzy (IRE)J: Davy Russell Gurteen Agricultural College Handicap Hurdle (80-109)20f · Soft · 15 ran 3rd 14/1
06 Nov 11 Cork Indifference Curve (FR)J: Davy Russell Paddypower.com Cork Grand National Handicap Chase (0-150) (grade B)28f · Soft · 14 ran 3rd 13/2
04 Nov 11 Down Royal According To Lizzy (IRE)J: Barry Geraghty Allianz Maiden Hurdle22f · Soft · 17 ran 7th 14/1
23 Oct 11 Galway Indifference Curve (FR)J: Barry Geraghty Dara Cassidy Memorial Handicap Chase22.5f · Heavy · 19 ran 2nd 11/2
26 Sep 11 Roscommon Indifference Curve (FR)J: Davy Russell Kiltoom Handicap Chase21f · Soft · 10 ran 2nd 9/1
02 Sep 10 Clonmel Alison's Choice (IRE)J: Andrew J McNamara 'tipperary Going For 26' Handicap Hurdle (80-95)20f · Good To Firm · 18 ran 16th 25/1
28 Jul 10 Galway Rebel Chief (IRE)J: Davy Russell Tote Jackpot Races 3 to 6 Handicap Hurdle (88-130)23.5f · Good To Firm · 20 ran 11th 11/1
13 Jul 10 Killarney Irish Soul (IRE)J: Andrew J McNamara Paul Fitzgerald & Son Builders Suppliers Handicap Hurdle (80-102)20f · Yielding · 18 ran 8th 6/1J
09 Jul 10 Cork Alison's Choice (IRE)J: M P Butler Dermot Casey - Hire, Sales & Tree Services Mares Handicap Hurdle (81-109)20f · Yielding · 23 ran PU 33/1
07 Jun 10 Listowel Irish Soul (IRE)J: Andrew J McNamara Harvest Festival 12th-18th September Handicap Hurdle (80-95) Div 220f · Good To Yielding · 18 ran 3rd 6/1
17 May 10 Roscommon Raging Spirit (IRE)J: Sean Levey Derrinstown Stud Apprentice Handicap (47-65)12f · Good To Firm · 15 ran 14th 20/1
16 May 10 Limerick Alison's Choice (IRE)J: Andrew J McNamara Supermacs Dooradoyle Mares Maiden Hurdle19f · Good · 17 ran 10th 20/1

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 Miss Margaret M O'Sullivan's strike rate?
Miss Margaret M O'Sullivan has won 6 of 127 runners since 2008, a strike rate of 4.7% (as at 6 November 2026). Figures are computed from our own results archive.
What is Miss Margaret M O'Sullivan's Fair A/E?
0.85, from 127 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 6 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).