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Trainer profile

Dermot P O'Brien

27 runners in the last 5 seasons · 6 individual horses
As at 20 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner 47 days ago
Last 5 seasons Lifetime (2015→)
from 1 Jan 2022
2–27
Wins / Runs
7.4%
Strike rate
n=27
7 (26%)
Placed
1.23
Fair A/E
n=27 · 1.02 incl. margin
−16.00
£1 level stake
n=27 at SP · −59.3%
£34,195
Prize money (window)
Strike by season
0%

Small sample — fewer than 30 runs in this window. Read the Ns before the percentages.

Yard patterns

the angles behind the record · vs 7.4% baseline
Fresh · 61+ days off
0%−7.4
n=4 · A/E 0.00 · £1 −4.00
New recruits · first run for the yard
0%−7.4
n=1 · A/E 0.00 · £1 −1.00
Debutants · first career start
0%−7.4
n=4 · A/E 0.00 · £1 −4.00
When favourite
100%
n=1 · A/E 2.71 · £1 +1.50
Claiming riders · a claimer in the saddle
0%−7.4
n=12 · A/E 0.00 · £1 −12.00
Group / Graded races · pattern & listed
0%−7.4
n=4 · A/E 0.00 · £1 −4.00

Each tile is the record in that situation vs the 7.4% 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.

Record by conditions

same window as header

Race type

TypeRWSR£1
Hurdle 19 2 10.5% −8.00
NH Flat 5 0 0% −5.00
Flat 3 0 0% −3.00

Going

GoingRWSR£1
Good to Soft 9 0 0% −9.00
Good 7 1 14.3% −4.50
Soft 7 0 0% −7.00
Heavy 3 1 33.3% +5.50
Good to Firm 1 0 0% −1.00

Courses

CourseRWSR£1
Tramore 8 0 0% −8.00
Killarney 5 1 20% −2.50
Punchestown 3 0 0% −3.00
Galway 2 0 0% −2.00
Limerick 2 0 0% −2.00
Listowel 2 1 50% +6.50
Cork 1 0 0% −1.00
Ballinrobe 1 0 0% −1.00
Bellewstown 1 0 0% −1.00
Clonmel 1 0 0% −1.00
Kilbeggan (IRE) 1 0 0% −1.00

Class

ClassRWSR£1
Class 1 4 0 0% −4.00

Market position

In the bettingRWSRA/E£1
Favourite 1 1 100% 2.71 +1.50
2nd–3rd fav 4 1 25% 1.60 +4.50
4th–6th fav 6 0 0% 0.00 −6.00
7th+ in betting 16 0 0% 0.00 −16.00
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
84.2% completed · 19 obstacle runners (chases & hurdles)
CodeRCompFURPUBDOth
Hurdle 19 84.2% 0 0 3 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
Molly Wedger (IRE) 12 2 5 23 Oct 22
Annie Hope Harriet (IRE) 7 0 0 24 Sep 25
Moresby Buoy (IRE) 3 0 2 1 Aug 22
River Kingdom (IRE) 2 0 0 1 Jan 26
Pat The Carraig (IRE) 2 0 0 21 Apr 24
Jack Spriggins (IRE)from J P Murtagh 1 0 0 3 Sep 26
All 6 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 6 horses listed, 1 arrived from another yard in our archive; 5 had their first archived run for this yard.

None of them has a 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.

Jockey bookings

same window · biggest samples first
RiderRWSR£1
Brian Hayes 8 2 25% +3.00
Richard Condon 4 0 0% −4.00
Miss J Walton 2 0 0% −2.00
Miss A B O'Connor 2 0 0% −2.00
Miss T Quail 2 0 0% −2.00
Mr Derek O'Connor 1 0 0% −1.00
Phillip Enright 1 0 0% −1.00
Richard Deegan 1 0 0% −1.00
Sam Ewing 1 0 0% −1.00
Mr J D Coffey 1 0 0% −1.00
Kieran Callaghan 1 0 0% −1.00
Shane Fitzgerald 1 0 0% −1.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2015→
9
Archived wins
£110k
Prize money
2016
Best season · 3 wins
Molly Wedger (IRE) — Bryan MacMahon Handicap Hurdle Listowel · Jun 2022
£12,980
Molly Wedger (IRE) — Irish Stallion Farms EBF Mares Hurdle Killarney · Jul 2022
£10,915
Glendine River (IRE) — Irish Stallion Farms Ebf Handicap Hurdle (80-109) Tramore · Jun 2017
£9,240
Notable horses
Glendine River (IRE) Molly Wedger (IRE)

Sires in the string

progeny record · win % by ground and trip
Doyen (IRE) 16.7% · 2–12
Progeny have won 11.5% of 7,349 runs since 2008 (605 horses).
Bullet Train (GB) 0% · 0–7
Progeny have won 4.7% of 86 runs since 2008 (14 horses).
Laverock (IRE) 0% · 0–3
Progeny have won 11.5% of 523 runs since 2008 (59 horses). Strongest over 2m5f – 3m (all codes): 18.3% from 104. Weakest over 2m1f – 2m4f (all codes): 7.1% from 240.
Dansant (GB) 0% · 0–2
Progeny have won 7.9% of 541 runs since 2008 (64 horses). Strongest on Heavy going: 11.9% from 109.
Rule of Law (USA) 0% · 0–2
Progeny have won 5.8% of 310 runs since 2008 (35 horses).
Make Believe (GB) 0% · 0–1
Progeny have won 11.1% of 3,597 runs since 2008 (297 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 20 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 99 · newest first

The latest 50 of 99 archived runners, newest first. The full record runs from 24 July 2015 to 3 September 2026.

DateCourseHorseRaceFinishSP
03 Sep 26 Kilbeggan (IRE) Jack Spriggins (IRE)J: Kevin Healy Start Your Racing TV Free Trial Now Maiden Hurdle (Div II)16f · Good To Yielding · 14 ran PU 40/1
01 Jan 26 Tramore River Kingdom (IRE)J: Shane Fitzgerald Ryans Cleaning Services Maiden Hurdle21.5f · Soft · 8 ran 7th 250/1
06 Nov 25 Clonmel River Kingdom (IRE)J: Mr J D Coffey racingtv.com/freetrial Flat Race16.5f · Soft · 10 ran 9th 40/1
24 Sep 25 Listowel Annie Hope Harriet (IRE)J: Richard Deegan Brandon Hotel Handicap Hurdle (0-100)18f · Yielding · 15 ran 14th 66/1
15 Aug 25 Tramore Annie Hope Harriet (IRE)J: Brian Hayes Walsh Butler Electrical Mares Maiden Hurdle21f · Good · 14 ran 8th 100/1
18 Jul 25 Killarney Annie Hope Harriet (IRE)J: Richard Condon Killarney Grand Mares Maiden Hurdle23f · Yielding To Soft · 12 ran 9th 200/1
08 Jun 25 Punchestown Annie Hope Harriet (IRE)J: Richard Condon Lily & Wild Mares Maiden Hurdle21.5f · Good To Yielding · 17 ran 10th 150/1
30 May 25 Tramore Annie Hope Harriet (IRE)J: Miss T Quail QuinnBet (Ladies Pro/Am) Flat Race16f · Good To Yielding · 12 ran 9th 22/1
09 Sep 24 Galway Annie Hope Harriet (IRE)J: Miss A B O'Connor Irish Stallion Farms EBF Mares Flat Race16.5f · Good To Yielding · 15 ran 10th 80/1
18 Aug 24 Tramore Annie Hope Harriet (IRE)J: Miss A B O'Connor Irish Stallion Farms EBF Mares Flat Race16.5f · Good · 13 ran 10th 16/1
21 Apr 24 Tramore Pat The Carraig (IRE)J: Ethan O'Sullivan Adare Manor Opportunity Maiden Hurdle21.5f · Yielding · 10 ran PU 80/1
01 Jan 24 Tramore Pat The Carraig (IRE)J: Sam Ewing Ryans Cleaning Services Maiden Hurdle21.5f · Heavy · 8 ran PU 28/1
23 Oct 22 Limerick Molly Wedger (IRE)J: Brian Hayes Irish Stallion Farms EBF Cailin Alainn Mares Hurdle (Listed)22.5f · Soft · 7 ran 5th 16/1
09 Sep 22 Ballinrobe Molly Wedger (IRE)J: Kieran Callaghan Irish Stallion Farms EBF Mares Handicap Hurdle22f · Good · 10 ran 3rd 8/1
20 Aug 22 Killarney Molly Wedger (IRE)J: Brian Hayes Failte Hotel, Bar, Restaurant Handicap Hurdle22.5f · Good To Yielding · 13 ran 7th 6/1
11 Aug 22 Tramore Molly Wedger (IRE)J: Miss J Walton Flynn Hotels (Ladies) Maiden16f · Good To Firm · 10 ran 2nd 11/4
01 Aug 22 Cork Moresby Buoy (IRE)J: Mr Derek O'Connor Follow Us On Facebook Flat Race19f · Good To Yielding · 19 ran 11th 3/1
30 Jul 22 Galway Molly Wedger (IRE)J: Brian Hayes Boylesports Handicap Hurdle (Grade B)23f · Soft · 20 ran 7th 28/1
14 Jul 22 Killarney Moresby Buoy (IRE)J: Miss J Walton Kelly Brothers Farm Modernisation (Ladies Pro/Am) Flat Race17f · Good · 12 ran 3rd 7/1
14 Jul 22 Killarney Molly Wedger (IRE)J: Brian Hayes Irish Stallion Farms EBF Mares Hurdle20f · Good · 6 ran 1st 6/4F

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 Dermot P O'Brien's strike rate?
Dermot P O'Brien has won 2 of 27 runners since 2022, a strike rate of 7.4% (as at 20 October 2026). Figures are computed from our own results archive. A small sample — fewer than 30 runners, so read the count before the percentage.
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 20 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).