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Jockey profile

Mr S O O'Brien

10 rides in the lifetime window · 8 individual horses
As at 6 Nov 2026 · KTB archive: 2005–present, updated daily
Last ride Dec 2010 90% of rides over jumps
Last 5 seasons Lifetime (2008→)
No rides 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.
0–10
Wins / Runs
0%
Strike rate
n=10
1 (10%)
Placed
0.00
Fair A/E
n=10 · 0.00 incl. margin
−10.00
£1 level stake
n=10 at SP · −100.0%
£1,208
Prize money (window)
Strike by season
0%

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

Riding patterns

the angles behind the record · vs 0% baseline
First ride on the horse · first captured pairing
0%+0.0
n=6 · A/E 0.00 · £1 −6.00
Fresh horses · 61+ days off
0%+0.0
n=3 · A/E 0.00 · £1 −3.00
Claiming rides · riding with a claim
0%+0.0
n=10 · A/E 0.00 · £1 −10.00
Big fields · 14+ runners
0%+0.0
n=7 · A/E 0.00 · £1 −7.00

Each tile is the record in that situation vs the 0% baseline — descriptive splits with the sample always shown, for you to weigh. Tiles under 30 runs render muted. First rides are the first captured pairing of horse and rider; last-time-out winners are horses whose previous captured run was a win; claiming rides are runs where the rider carried a weight claim. Group / Graded covers pattern and listed races.

Record by conditions

same window as header

Race type

TypeRWSR£1
NH Flat 9 0 0% −9.00
Flat 1 0 0% −1.00

Going

GoingRWSR£1
Heavy 5 0 0% −5.00
Soft 3 0 0% −3.00
Good 1 0 0% −1.00
Standard (AW) 1 0 0% −1.00

Courses

CourseRWSR£1
Cork 3 0 0% −3.00
Limerick 2 0 0% −2.00
Dundalk (AW) 1 0 0% −1.00
Clonmel 1 0 0% −1.00
Gowran Park 1 0 0% −1.00
Leopardstown 1 0 0% −1.00
Tramore 1 0 0% −1.00

Market position

In the bettingRWSRA/E£1
2nd–3rd fav 1 0 0% 0.00 −1.00
4th–6th fav 3 0 0% 0.00 −3.00
7th+ in betting 6 0 0% 0.00 −6.00
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 ridden

same window as header · most-raced first
HorseRWPlLast ran
Rosie Kilrain (IRE) 2 0 0 28 Dec 10
Wilde Wit Pleasure (IRE) 2 0 0 7 Nov 08
Betwixn Between (IRE) 1 0 0 29 Dec 10
The Coulin (IRE) 1 0 0 15 Dec 09
Ballyvoile (IRE) 1 0 1 19 Apr 09
The Real Project (IRE) 1 0 0 16 Feb 08
Emily's Choice (IRE) 1 0 0 7 Feb 08
Jackieo (IRE) 1 0 0 5 Jan 08
All 8 horses ridden 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.

Riding for

same window · biggest samples first
TrainerRWSR£1
Sean O O'Brien 8 0 0% −8.00
Ms M Flynn 1 0 0% −1.00
Kieran Purcell 1 0 0% −1.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2005→
1
Archived wins
£10,400
Prize money
2006
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.
Coolnacarriga (IRE) — Racing Here Again August 28th Mares Flat Race Tralee · Jun 2006
£6,219
Notable horses
Coolnacarriga (IRE)

Sires of the horses ridden

progeny record · win % by ground and trip
Oscar (IRE) 0% · 0–4
Progeny have won 10.9% of 16,543 runs since 2008 (1,456 horses). Strongest on Standard (AW) going: 18.1% from 105.
Close Conflict (USA) 0% · 0–2
Progeny have won 7.8% of 565 runs since 2008 (73 horses). Weakest on Heavy going: 3.8% from 106.
Fourstars Allstar (USA) 0% · 0–1
Progeny have won 7.1% of 940 runs since 2008 (120 horses). Strongest beyond 3m (all codes): 10.6% from 113.
Luso (GB) 0% · 0–1
Progeny have won 6.7% of 3,516 runs since 2008 (389 horses).
Rashar (USA) 0% · 0–1
Progeny have won 6.3% of 997 runs since 2008 (122 horses). Strongest on Good going: 10.4% from 251. Weakest on Heavy going: 2.7% from 219.
Turtle Island (IRE) 0% · 0–1
Progeny have won 7.5% of 3,325 runs since 2008 (309 horses). Strongest on Good to Firm going: 10.7% from 215.
Top line: the rider'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

all 41 archived runs · newest first

Every one of Mr S O O'Brien's 41 archived rides, from 6 January 2005 to 29 December 2010, newest first — one winner among them.

DateCourseHorseRaceFinishSP
29 Dec 10 Limerick Betwixn Between (IRE)T: Sean O O'Brien GGL Security 24/7 Alarm Flat Race18f · Soft To Heavy · 14 ran 11th 33/1
28 Dec 10 Limerick Rosie Kilrain (IRE)T: Sean O O'Brien Limerick Racecourse Vets Flat Race16f · Soft To Heavy · 16 ran 11th 33/1
12 Dec 10 Cork Rosie Kilrain (IRE)T: Sean O O'Brien www.corkracecourse.ie (Pro/Am) Flat Race16f · Soft · 11 ran 7th 14/1
15 Dec 09 Cork The Coulin (IRE)T: Sean O O'Brien Irish Stallion Farms E.B.F Mares Flat Race16f · Heavy · 15 ran 12th 14/1
19 Apr 09 Tramore Ballyvoile (IRE)T: Ms M Flynn Metal Man (c & G) (pro/am) Flat Race16f · Good · 15 ran 2nd 7/1
07 Nov 08 Dundalk (AW) Wilde Wit Pleasure (IRE)T: Sean O O'Brien Oriel INH Flat Race17f · Standard · 18 ran 8th 12/1
16 Feb 08 Gowran Park The Real Project (IRE)T: Sean O O'Brien Rockview (qr) Inh Flat Race17f · Soft · 20 ran 11th 12/1
10 Feb 08 Leopardstown Wilde Wit Pleasure (IRE)T: Sean O O'Brien Frank Ward & Co.Solicitors (Pro-Am) Flat Race16f · Yielding To Soft · 21 ran 10th 40/1
07 Feb 08 Clonmel Emily's Choice (IRE)T: Sean O O'Brien Clogheen Inh Flat Race16f · Heavy · 13 ran 11th 25/1
05 Jan 08 Cork Jackieo (IRE)T: Kieran Purcell McCarthy Insurance Group (Pro-Am) Flat Race16f · Heavy · 12 ran 9th 50/1
16 Dec 07 Cork Rayon De Soleil (IRE)T: Sean O O'Brien O'Connell Containers (Pro/Am) Flat Race16f · Soft · 24 ran 16th 7/1
08 Dec 07 Navan Ozzy Mac (IRE)T: Sean O O'Brien Irish Racing Yearbook Inh Flat Race16f · Heavy · 30 ran 14th 33/1
02 Dec 07 Fairyhouse The Real Project (IRE)T: Sean O O'Brien O'Doherty's Audio & Visual (Pro-Am) Flat Race16f · Heavy · 25 ran 3rd 20/1
24 Nov 07 Gowran Park The Coulin (IRE)T: Sean O O'Brien Duninga Gallops (pro-am) Inh Flat Race16f · Yielding To Soft · 20 ran 10th 33/1
08 Apr 07 Cork Joey From Ardrahan (IRE)T: Kieran Purcell Hickey Communications (pro-am) Flat Race16f · Good To Firm · 22 ran 15th 25/1
01 Mar 07 Limerick Ozzy Mac (IRE)T: Sean O O'Brien Rockview (qr) Mares Inh Flat Race16f · Heavy · 18 ran 10th 12/1
17 Dec 06 Thurles Cloonacleigha (IRE)T: Ms M Flynn Curaheen (pro-am) Inh Flat Race18f · Soft · 15 ran 12th 33/1
12 Nov 06 Limerick (IRE) Enchanted Breeze (IRE)T: Ms M Flynn Souths Bar Mares (Pro/Am) INH Flat Race16f · Soft · 17 ran 8th 33/1
04 Oct 06 Tralee Baker Flinn (IRE)T: Sean O O'Brien Racing Here Again 26th May'07 Flat Race20f · Soft To Heavy · 17 ran 14th 20/1
31 Aug 06 Tralee Noble Oscar (IRE)T: Sean O O'Brien Cadu Properties Inh Flat Race16f · Yielding · 19 ran 15th 16/1

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 Mr S O O'Brien's strike rate?
Mr S O O'Brien has won 0 of 10 rides since 2008, a strike rate of 0% (as at 6 November 2026). Figures are computed from our own results archive. A small sample — fewer than 30 rides, 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 6 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).