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Trainer profile

Ciaran O'Brien

99 runners in the lifetime window · 19 individual horses
As at 15 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner May 2013 91% of runners over jumps
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.
1–99
Wins / Runs
1%
Strike rate
n=99
12 (12%)
Placed
0.24
Fair A/E
n=99 · 0.17 incl. margin
−91.00
£1 level stake
n=99 at SP · −91.9%
£21,763
Prize money (window)
Strike by season
0%

Yard patterns

the angles behind the record · vs 1% baseline
Fresh · 61+ days off
0%−1.0
n=17 · A/E 0.00 · £1 −17.00
New recruits · first run for the yard
0%−1.0
n=2 · A/E 0.00 · £1 −2.00
Debutants · first career start
0%−1.0
n=13 · A/E 0.00 · £1 −13.00
First-time headgear · true-first definition
0%−1.0
n=4 · A/E 0.00 · £1 −4.00
Headgear returns · back on after a bare run
0%−1.0
n=4 · A/E 0.00 · £1 −4.00
When favourite
0%
n=1 · A/E 0.00 · £1 −1.00
Claiming riders · a claimer in the saddle
0%−1.0
n=31 · A/E 0.00 · £1 −31.00

Each tile is the record in that situation vs the 1% 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 a new jockey booking 0% vs 1% · n=64 · A/E 0.00
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 61 1 1.6% −53.00
Chase 23 0 0% −23.00
Flat 9 0 0% −9.00
NH Flat 6 0 0% −6.00

Going

GoingRWSR£1
Soft 36 1 2.8% −28.00
Heavy 26 0 0% −26.00
Good 21 0 0% −21.00
Good to Firm 7 0 0% −7.00
Good to Soft 4 0 0% −4.00
Standard (AW) 4 0 0% −4.00
Firm 1 0 0% −1.00

Courses

CourseRWSR£1
Cork 15 0 0% −15.00
Limerick 11 0 0% −11.00
Thurles 10 0 0% −10.00
Clonmel 9 0 0% −9.00
Punchestown 8 0 0% −8.00
Tipperary 7 0 0% −7.00
Gowran Park 6 0 0% −6.00
Roscommon 5 0 0% −5.00
Dundalk (AW) 4 0 0% −4.00
Wexford 4 0 0% −4.00
Tramore 3 0 0% −3.00
Naas 3 0 0% −3.00
Southwell 2 0 0% −2.00
Navan 2 1 50% +6.00
Ballinrobe 2 0 0% −2.00

Class

ClassRWSR£1
Class 4 2 0 0% −2.00

Market position

In the bettingRWSRA/E£1
Favourite 2 0 0% 0.00 −2.00
2nd–3rd fav 12 0 0% 0.00 −12.00
4th–6th fav 13 1 7.7% 1.17 −5.00
7th+ in betting 72 0 0% 0.00 −72.00
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
83.3% completed · 84 obstacle runners (chases & hurdles)
CodeRCompFURPUBDOth
Chase 23 73.9% 2 0 4 0 0
Hurdle 61 86.9% 1 1 6 0 0
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
The Ladys Man (IRE) 19 0 7 5 Nov 09
Knights Templar (IRE)from G M Lyons · then Patrick J Flynn 14 0 1 7 Apr 12
Rathnaskillogue (IRE)then Paul A Roche 10 0 2 8 Oct 09
Vintage Oak (IRE) 8 1 2 18 Nov 10
Battlemount (IRE)then Sean Byrne 7 0 0 23 Feb 12
Hunting Winds (GB) 5 0 0 2 May 13
Cottage Cross (IRE) 5 0 0 6 Jan 11
Greenhouse (IRE) 5 0 0 11 Jul 08
Roowest (IRE) 4 0 0 31 Mar 11
Port And Brandy (FR) 4 0 0 12 Dec 10
Rebel Flyer (IRE) 3 0 0 22 Oct 08
All 19 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 19 horses listed, 2 arrived from another yard in our archive; 17 had their first archived run for this yard.

6 have since run for another yard; 13 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
007000000000
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
D J Casey 14 1 7.1% −6.00
Martin Ferris 8 0 0% −8.00
Alan Crowe 6 0 0% −6.00
Paul Townend 6 0 0% −6.00
Davy Condon 5 0 0% −5.00
T G M Ryan 5 0 0% −5.00
Marc Monaghan 3 0 0% −3.00
Niall P Madden 3 0 0% −3.00
P W Flood 3 0 0% −3.00
John Allen 2 0 0% −2.00
Mr M M O'Connor 2 0 0% −2.00
Niall Kelly 2 0 0% −2.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2005→
2
Archived wins
£38,716
Prize money
2010
Best season · 1 win
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.
Vintage Oak (IRE) — Slane Handicap Hurdle Navan · Mar 2010
£10,350
Nelliedonethat (IRE) — Brooks Group Limerick Handicap Hurdle (74-116) Limerick · Dec 2006
£9,329

Sires in the string

progeny record · win % by ground and trip
Turtle Island (IRE) 0% · 0–21
Progeny have won 7.5% of 3,325 runs since 2008 (309 horses). Strongest on Good to Firm going: 10.7% from 215.
Trade Fair (GB) 0% · 0–14
Progeny have won 9.6% of 2,230 runs since 2008 (113 horses).
Executive Perk (GB) 0% · 0–10
Progeny have won 6.6% of 363 runs since 2008 (54 horses).
Arctic Lord (IRE) 12.5% · 1–8
Progeny have won 5.5% of 795 runs since 2008 (82 horses). Strongest on Good to Firm going: 12% from 117. Weakest on Heavy going: 1.4% from 147.
Definite Article (GB) 0% · 0–7
Progeny have won 10.5% of 5,617 runs since 2008 (527 horses). Weakest on Standard (AW) going: 5.1% from 138. Weakest over 1m2f – 1m4f (all codes): 4.3% from 211.
Beneficial (GB) 0% · 0–6
Progeny have won 10.5% of 17,043 runs since 2008 (1,155 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 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 181 · newest first

The latest 50 of 181 archived runners, newest first. The full record runs from 15 February 2005 to 20 May 2013.

DateCourseHorseRaceFinishSP

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 Ciaran O'Brien's strike rate?
Ciaran O'Brien has won 1 of 99 runners since 2008, a strike rate of 1% (as at 15 October 2026). Figures are computed from our own results archive.
What is Ciaran O'Brien's Fair A/E?
0.24, from 99 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).