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Home / Free Data / Trainer / Aidan O'Brien

Trainer profile

Aidan O'Brien

Base: Cashel, Co Tipperary
Region: IRE

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Flat 2026 (GB & IRE): 111 wins from 579 runs (19%)
Prize money Flat 2026 (GB & IRE): £9,133,329 GB · €5,693,321 IRE
Last 14 days (GB & IRE): 11 wins from 63 runs (17%)
Last winner (GB & IRE): Yesterday: City Of Gold (GB), Leopardstown (IRE)
Career (GB & IRE since 1993): 4,313 wins from 22,148 runs (19%)

Next entry · 18 Oct · 14:12 Leopardstown · Leopardstown Golf, Padel And Range Maiden

Form

Flat 2026 season


Flat Turf	563	106	18.8%	148	£9,133,329	€5,616,979	68/173	Sun Goddess (IRE)
Flat AW	16	5	31.3%	4	£0	€76,342	5/16	Institute (IRE)
All races	579	111	19.2%	152	£9,133,329	€5,693,321	73/176	Sun Goddess (IRE)

GB and IRE. Placed = 2nd or 3rd.

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Flat last 5 seasons (2022 to date)


Flat Turf	2,815	625	22.2%	769	£34,842,193	€29,083,934	350/558	Kyprios (IRE)
Flat AW	163	39	23.9%	54	£24,209	€605,282	39/115	Romantic Thor (USA)
All races	2,978	664	22.3%	823	£34,866,402	€29,689,216	368/562	Kyprios (IRE)

GB and IRE. Placed = 2nd or 3rd.

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Career (GB and IRE, records from 1990)


Hurdle	2,351	404	17.2%	533	£990,509	€681,639	178/423	Istabraq (IRE)
Chase	682	90	13.2%	189	£64,391	€82,234	49/115	Life Of A Lord (GB)
NH Flat	1,064	198	18.6%	275	£0	€259,347	149/392	Moondigua (IRE)
Flat Turf	17,083	3,403	19.9%	4,620	£115,801,282	€120,940,276	1876/2860	Kyprios (IRE)
Flat AW	968	218	22.5%	262	£205,964	€3,191,864	192/553	Clear Skies (GB)
All races	22,148	4,313	19.5%	5,879	£117,062,146	€125,155,359	2193/3332	Istabraq (IRE)

Best horse = most wins in the category.

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Last 14 days runners


17 Oct 26	Leopardstown (IRE)	Irish Stallion Farms EBF Nursery Handicap	Flat Turf	-	1m½f	Good	City Of Gold (GB)	Wayne Lordan	1/7	13/8F	91	€18,000
17 Oct 26	Leopardstown (IRE)	Irish Stallion Farms EBF (C & G) Maiden	Flat Turf	-	7f	Good	Walnut Cove (USA)	Paddy Harnett	11/12	33/1	-	€0
17 Oct 26	Leopardstown (IRE)	Irish Stallion Farms EBF (C & G) Maiden	Flat Turf	-	7f	Good	Accumulation (IRE)	Wayne Lordan	1/12	5/2	-	€13,200
17 Oct 26	Leopardstown (IRE)	Irish Stallion Farms EBF (C & G) Maiden	Flat Turf	-	7f	Good	Imposing (IRE)	Jack Cleary	2/12	22/1	-	€4,400
17 Oct 26	Leopardstown (IRE)	Mongey Communications Killavullan Stakes	Flat Turf	Group 3	7f	Good	Capability Brown (IRE)	Wayne Lordan	1/6	100/30	95	€42,000
17 Oct 26	Ascot	Qatar Racing Champion Stakes	Flat Turf	Group 1	1m2f	Good	Constitution River (FR)	Ryan Moore	5/6	9/2	123	£34,970
17 Oct 26	Leopardstown (IRE)	Irish Stallion Farms EBF Laidlaw Cup Fillies Maiden	Flat Turf	-	7f	Good	Snowing (IRE)	Wayne Lordan	1/13	5/4F	98	€13,200
17 Oct 26	Leopardstown (IRE)	Irish Stallion Farms EBF Laidlaw Cup Fillies Maiden	Flat Turf	-	7f	Good	Anymore (IRE)	Jack Cleary	8/13	22/1	-	€0
17 Oct 26	Ascot	Queen Elizabeth II Stakes (Sponsored By Qatar Racing)	Flat Turf	Group 1	1m	Good	Gstaad (GB)	Ryan Moore	8/11	7/4F	125	£0
17 Oct 26	Ascot	Queen Elizabeth II Stakes (Sponsored By Qatar Racing)	Flat Turf	Group 1	1m	Good	Hawk Mountain (IRE)	Colin Keane	11/11	33/1	116	£0
17 Oct 26	Leopardstown (IRE)	Mongey Communications Eyrefield Stakes	Flat Turf	Group 3	1m1f	Good	Wall Street (GB)	Wayne Lordan	1/6	4/7F	-	€42,000
17 Oct 26	Leopardstown (IRE)	Mongey Communications Eyrefield Stakes	Flat Turf	Group 3	1m1f	Good	Albany County (IRE)	Jack Cleary	5/6	9/1	-	€2,101
17 Oct 26	Ascot	Qatar Racing British Champions Fillies & Mares Stakes	Flat Turf	Group 1	1m4f	Good	Sugar Island (IRE)	Christophe Soumillon	4/12	150/1	102	£26,800
17 Oct 26	Ascot	Qatar Racing British Champions Fillies & Mares Stakes	Flat Turf	Group 1	1m4f	Good	Minnie Hauk (IRE)	Ryan Moore	1/12	5/1	119	£283,550
17 Oct 26	Leopardstown (IRE)	Irish EBF (C & G) Maiden	Flat Turf	-	1m½f	Good	Pirate Of Penzance (IRE)	Gavin Ryan	6/15	25/1	-	€500
17 Oct 26	Leopardstown (IRE)	Irish EBF (C & G) Maiden	Flat Turf	-	1m½f	Good	Kingdom Of Camelot (FR)	Wayne Lordan	7/15	9/2	-	€0
17 Oct 26	Leopardstown (IRE)	Irish EBF (C & G) Maiden	Flat Turf	-	1m½f	Good	Aladdin's Cave (IRE)	Jack Cleary	5/15	9/1	-	€750
17 Oct 26	Ascot	Qatar Racing British Champions Day Two-Year-Old Conditions Stakes	Flat Turf	Class 2	6f	Good	Confucius (IRE)	Ryan Moore	4/11	20/1	-	£15,100
17 Oct 26	Leopardstown (IRE)	Irish EBF Fillies Maiden	Flat Turf	-	1m½f	Good	Speckles (IRE)	Wayne Lordan	1/10	8/15F	97	€15,000
17 Oct 26	Leopardstown (IRE)	Irish EBF Fillies Maiden	Flat Turf	-	1m½f	Good	Captivating (IRE)	Jack Cleary	7/10	20/1	-	€0
17 Oct 26	Ascot	Qatar Racing British Champions Long Distance Cup	Flat Turf	Group 1	2m	Good	Amelia Earhart (IRE)	Colin Keane	6/10	20/1	110	£6,750
17 Oct 26	Ascot	Qatar Racing British Champions Long Distance Cup	Flat Turf	Group 1	2m	Good	Queenstown (IRE)	Ryan Moore	2/10	14/1	114	£107,500
16 Oct 26	Dundalk (AW) (IRE)	James Crowe 1 Year Memorial Nursery Handicap	Flat AW	-	7f	Standard	Lake Lugano (IRE)	Wayne Lordan	2/13	6/1	75	€3,000
16 Oct 26	Dundalk (AW) (IRE)	Book Online At DundalkStadium.com Maiden	Flat AW	-	6f	Standard	Monmouth (IRE)	Wayne Lordan	2/9	5/2	77	€2,399
15 Oct 26	Curragh (IRE)	DNG People & Property Maiden	Flat Turf	-	1m4f	Yielding To Soft	Cosmetic (IRE)	Wayne Lordan	5/12	22/1	79	€600
15 Oct 26	Curragh (IRE)	Irish EBF Median Sires Series Maiden	Flat Turf	-	1m	Soft	Maximilien Luce (IRE)	Wayne Lordan	6/15	5/1	-	€500
15 Oct 26	Curragh (IRE)	Irish EBF Median Sires Series Maiden	Flat Turf	-	1m	Soft	Anthony Of Lisbon (GB)	Jack Cleary	12/15	40/1	-	€0
15 Oct 26	Curragh (IRE)	Irish EBF Median Sires Series Maiden	Flat Turf	-	6f	Soft	Captain James Cook (GB)	Wayne Lordan	5/12	11/1	61	€750
11 Oct 26	Naas (IRE)	Irish Stallion Farms EBF Bluebell Stakes	Flat Turf	Listed	1m4f	Soft	Moments Of Joy (USA)	Ryan Moore	6/14	28/1	98	€999
11 Oct 26	Naas (IRE)	Irish Stallion Farms EBF Garnet Stakes	Flat Turf	Listed	1m	Soft	Drop Dead Gorgeous (IRE)	Ryan Moore	8/16	9/1	91	€0
11 Oct 26	Naas (IRE)	Irish Stallion Farms EBF Garnet Stakes	Flat Turf	Listed	1m	Soft	Classiest (IRE)	Wayne Lordan	12/16	25/1	90	€0
11 Oct 26	Naas (IRE)	Tifrums Irish EBF (C & G) Maiden	Flat Turf	-	6f	Soft	Bengal Tiger (IRE)	Ryan Moore	1/7	2/9F	-	€13,200
11 Oct 26	Naas (IRE)	Tifrums Irish EBF (C & G) Maiden	Flat Turf	-	6f	Soft	Major Triumph (IRE)	Wayne Lordan	3/7	6/1	-	€2,200
11 Oct 26	Naas (IRE)	Irish Stallion Farms EBF Fillies Maiden	Flat Turf	-	6f	Soft	Be In Love (IRE)	Wayne Lordan	6/13	7/1	-	€440
11 Oct 26	Naas (IRE)	Irish Stallion Farms EBF Fillies Maiden	Flat Turf	-	6f	Soft	Film Set (USA)	Ryan Moore	3/13	3/1J	77	€2,200
10 Oct 26	Newmarket	Darley Dewhurst Stakes	Flat Turf	Group 3	7f	Good	Great Barrier Reef (IRE)	Wayne Lordan	3/5	15/2	-	£53,800
10 Oct 26	Newmarket	Darley Dewhurst Stakes	Flat Turf	Group 3	7f	Good	Darkness Falls (IRE)	Ryan Moore	1/5	6/4	-	£283,550
10 Oct 26	Naas (IRE)	Irish Stallion Farms EBF Birdcatcher Premier Nursery Handicap	Flat Turf	-	6f	Soft	New Yorker (USA)	Jack Cleary	7/7	14/1	84	€0
10 Oct 26	Newmarket	Emirates Autumn Stakes	Flat Turf	Group 3	1m	Good	Sergei Diaghilev (IRE)	Ryan Moore	2/7	15/8	-	£16,125
10 Oct 26	Newmarket	Native Trail Zetland Stakes	Flat Turf	Group 3	1m2f	Good	Drumbeat (IRE)	Ryan Moore	1/6	10/11F	-	£42,532
10 Oct 26	Naas (IRE)	Irish EBF Maiden	Flat Turf	-	1m	Soft	Knight's Honour (IRE)	Liam Keniry	12/18	16/1	-	€0
10 Oct 26	Naas (IRE)	Irish EBF Maiden	Flat Turf	-	1m	Soft	True Sovereign (USA)	Shane B Kelly	14/18	20/1	-	€0
10 Oct 26	Naas (IRE)	Irish EBF Maiden	Flat Turf	-	1m	Soft	Iveagh House (IRE)	Jack Cleary	4/18	5/6F	-	€1,250
9 Oct 26	Newmarket	Bet365 Fillies' Mile	Flat Turf	Group 2	1m	Good	Exceptionally (USA)	Colin Keane	8/8	50/1	-	£0
9 Oct 26	Newmarket	Bet365 Fillies' Mile	Flat Turf	Group 2	1m	Good	Haven (IRE)	Ryan Moore	2/8	28/1	-	£107,500
9 Oct 26	Newmarket	Godolphin Lifetime Care Oh So Sharp Stakes	Flat Turf	Group 3	7f	Good	Golden Ring (IRE)	Ryan Moore	7/14	9/1	-	£0
9 Oct 26	Newmarket	Newmarket Academy Godolphin Beacon Project Cornwallis Stakes	Flat Turf	Group 3	5f	Good	Carry The Flag (IRE)	Declan McDonogh	4/13	20/1	-	£4,020
9 Oct 26	Newmarket	Newmarket Academy Godolphin Beacon Project Cornwallis Stakes	Flat Turf	Group 3	5f	Good	Marco Polo (IRE)	Ryan Moore	8/13	17/2	-	£0
8 Oct 26	Thurles (IRE)	Irish Stallion Farms EBF Fillies Maiden	Flat Turf	-	1m½f	Good To Yielding	Ophelia (IRE)	Ben Coen	4/10	25/1	-	€1,100
8 Oct 26	Thurles (IRE)	Irish Stallion Farms EBF Fillies Maiden	Flat Turf	-	1m½f	Good To Yielding	Beach (IRE)	Jack Cleary	6/10	28/1	-	€440
7 Oct 26	Navan (IRE)	Navan Racecourse Welcomes Our Local Community Maiden	Flat Turf	-	1m	Yielding	Choctaw Nation (IRE)	Wayne Lordan	2/9	3/1	-	€3,600
7 Oct 26	Navan (IRE)	Navan Racecourse Welcomes Our Local Community Maiden	Flat Turf	-	1m	Yielding	Magna Cum Laude (USA)	Declan McDonogh	5/9	40/1	-	€540
7 Oct 26	Navan (IRE)	Navan Racecourse Welcomes Our Local Community Maiden	Flat Turf	-	1m	Yielding	Aachen (USA)	Jack Cleary	4/9	6/1	-	€900
5 Oct 26	Killarney (IRE)	Irish Stallion Farms EBF Fillies Maiden	Flat Turf	-	1m3f	Soft	Together Now (USA)	Wayne Lordan	2/7	2/7F	-	€3,000
5 Oct 26	Killarney (IRE)	Irish Stallion Farms EBF Navigation Stakes	Flat Turf	Listed	1m3f	Soft	Action (IRE)	Wayne Lordan	6/8	7/2	109	€999
5 Oct 26	Killarney (IRE)	Irish Stallion Farms EBF Navigation Stakes	Flat Turf	Listed	1m3f	Soft	Garden Party (IRE)	Gavin Ryan	8/8	40/1	85	€0
5 Oct 26	Killarney (IRE)	Carry Out Off-Licence Handicap	Flat Turf	-	1m	Soft	Closely (IRE)	Wayne Lordan	5/10	25/1	68	€361
5 Oct 26	Killarney (IRE)	Irish Stallion Farms EBF Maiden	Flat Turf	-	1m	Yielding To Soft	Lake Lugano (IRE)	Wayne Lordan	3/12	15/2	-	€1,800
4 Oct 26	Curragh (IRE)	Hailey Equine Irish EBF Brigid's Pastures Stakes	Flat Turf	Listed	6f	Soft	Institute (IRE)	Wayne Lordan	15/16	40/1	77	€0
4 Oct 26	Curragh (IRE)	Coolmore Sioux Nation Concorde Stakes	Flat Turf	Listed	7f	Soft	Lewis Carroll (IRE)	Wayne Lordan	4/10	40/1	85	€2,500

GB and IRE results, most recent first.

Great Britain only


Flat 2026 season	Flat Turf	142	27	19.0%	39	22/67	£9,133,329
Flat 2026 season	All races	142	27	19.0%	39	22/67	£9,133,329
Flat last 5 seasons (2022 to date)	Flat Turf	636	125	19.7%	164	80/250	£34,842,193
Flat last 5 seasons (2022 to date)	Flat AW	3	0	0.0%	2	0/3	£24,209
Flat last 5 seasons (2022 to date)	All races	639	125	19.6%	166	80/251	£34,866,402

GB races only, current and last 5 seasons per code. Placed = 2nd or 3rd.

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Ireland only


Flat 2026 season	Flat Turf	421	79	18.8%	109	59/170	€5,616,979
Flat 2026 season	Flat AW	16	5	31.3%	4	5/16	€76,342
Flat 2026 season	All races	437	84	19.2%	113	64/173	€5,693,321
Flat last 5 seasons (2022 to date)	Flat Turf	2,179	500	22.9%	605	329/552	€29,083,934
Flat last 5 seasons (2022 to date)	Flat AW	160	39	24.4%	52	39/113	€605,282
Flat last 5 seasons (2022 to date)	All races	2,339	539	23.0%	657	354/558	€29,689,216

Irish races only, current and last 5 seasons per code. Prize money in euro, never added to GB £.

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Quick answers

Where is Aidan O'Brien based?: Aidan O'Brien is a racehorse trainer based in Cashel, Co Tipperary, Ireland.
How many winners has Aidan O'Brien had this season?: In the 2026 Flat season, Aidan O'Brien has trained 111 winners from 579 runners in Britain and Ireland (19%).
How much prize money has Aidan O'Brien won this season?: Aidan O'Brien's runners have won £9,133,329 in Britain and €5,693,321 in Ireland in the 2026 Flat season.
How many winners has Aidan O'Brien trained in total?: Aidan O'Brien has trained 4,313 winners from 22,148 runners in Britain and Ireland since 1993 (19%). Runners abroad are not included.
How much prize money has Aidan O'Brien won in total?: Aidan O'Brien's runners have earned £117,062,146 in Britain and €125,155,359 in Ireland since 1993. Runners abroad are not included.
How many Group or Grade 1 races has Aidan O'Brien won?: Aidan O'Brien has won 139 Group or Grade 1 races in Britain and Ireland in the last 10 years, most recently with Minnie Hauk (IRE) in the Qatar Racing British Champions Fillies & Mares Stakes (Group 1) at Ascot on 17 October 2026.
Who has been Aidan O'Brien's most successful horse in the last 12 months?: Aidan O'Brien's most successful horse in Britain and Ireland over the last 12 months is Sun Goddess (IRE), with 6 wins.
Where does Aidan O'Brien have the most winners?: Curragh (IRE) is Aidan O'Brien's most successful course on the Flat since the start of 2022, with 168 winners from 757 runners (22%).
Does Aidan O'Brien have any runners coming up?: Aidan O'Brien has 40 runners entered or declared in the next 7 days, starting with King Of Sparta in the 14:12 at Leopardstown on 18 October 2026.
When did Aidan O'Brien last have a winner?: Aidan O'Brien's most recent winner in Britain or Ireland was City Of Gold (GB) at Leopardstown (IRE) on 17 October 2026.

Updated 2026-10-17

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Updated 2026-10-17

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