Aidan O’Brien

Welcome to our profile of leading Irish Trainer Aidan O’Brien.

Irish horse racing trainer Aidan Patrick O’Brien was born in County Wexford, Ireland, on October 16, 1969.

He has served as John Magnier and his associates from the Coolmore Stud’s private trainer at Ballydoyle Stables near Rosegreen in County Tipperary since 1996.

When Saxon Warrior won the Racing Post Trophy at Doncaster, O’Brien broke Bobby Frankel’s 2003 record of 25 by training 26 Group or Grade 1 winners in a single calendar year. O’Brien increased the record to 28 at the year’s end.

Find out more about Aidan O’Brien:

AIDAN O'BRIEN

Aidan O’Brien Runners Today

Here are all the Aidan O’Brien horses running today and future entries.

Time/dateCourseDistanceClassHorseJockey
14:00 11th Jun 23Navan5fPearls And Rubies (USA)R L Moore
15:40 11th Jun 23Navan1mC1Beginnings (USA)J A Heffernan
15:40 11th Jun 23Navan1mC1Dower House (IRE)R L Moore
15:40 11th Jun 23Navan1mC1Maybe Just Maybe (JPN)W M Lordan
16:40 11th Jun 23Navan1m 2fSubzero (IRE)W M Lordan
16:40 11th Jun 23Navan1m 2fCanute (USA)R L Moore
18:30 15th Jun 23Leopardstown7f 12yC1Age Of Kings (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fBoogie Woogie (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fDame Kiri (USA)Unknown Jockey
19:10 16th Jun 23Cork1m 4fBeginnings (USA)Unknown Jockey
19:10 16th Jun 23Cork1m 4fBe Happy (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fAll Time Great (USA)Unknown Jockey
19:10 16th Jun 23Cork1m 4fDower House (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fSavethelastdance (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fWater Nymph (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fWarm Heart (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fLambada (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fLibrary (IRE)Unknown Jockey
19:10 16th Jun 23Cork1m 4fRed Riding Hood (IRE)Unknown Jockey
15:40 20th Jun 23Ascot5fC1Aesop's Fables (IRE)Unknown Jockey
16:20 20th Jun 23Ascot7f 213yC1Age Of Kings (IRE)Unknown Jockey
16:20 20th Jun 23Ascot7f 213yC1Cairo (IRE)Unknown Jockey
16:20 20th Jun 23Ascot7f 213yC1The Antarctic (IRE)Unknown Jockey
16:20 20th Jun 23Ascot7f 213yC1PaddingtonUnknown Jockey
16:20 21st Jun 23Ascot1m 1f 212yBolshoi Ballet (IRE)Unknown Jockey
16:20 21st Jun 23Ascot1m 1f 212yLuxembourg (IRE)Unknown Jockey
16:20 21st Jun 23Ascot1m 1f 212yPoint Lonsdale (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Jackie Oh (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Lambada (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Dower House (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Be Happy (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1All Time Great (USA)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Library (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Boogie Woogie (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Diamondsareforever (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Red Carpet (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Warm Heart (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Water Nymph (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Never Ending Story (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Smart Cookie (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Savethelastdance (IRE)Unknown Jockey
15:40 22nd Jun 23Ascot1m 3f 211yC1Red Riding Hood (IRE)Unknown Jockey
16:20 22nd Jun 23Ascot2m 3f 210yC1Bolshoi Ballet (IRE)Unknown Jockey
16:20 22nd Jun 23Ascot2m 3f 210yC1Broome (IRE)Unknown Jockey
16:20 22nd Jun 23Ascot2m 3f 210yC1Changingoftheguard (IRE)Unknown Jockey
16:20 22nd Jun 23Ascot2m 3f 210yC1Point Lonsdale (IRE)Unknown Jockey
16:20 22nd Jun 23Ascot2m 3f 210yC1Emily Dickinson (IRE)Unknown Jockey
15:05 23rd Jun 23Ascot6fC1Hispanic (IRE)Unknown Jockey
15:05 23rd Jun 23Ascot6fC1Aesop's Fables (IRE)Unknown Jockey
15:05 23rd Jun 23Ascot6fC1Little Big Bear (IRE)Unknown Jockey
15:05 23rd Jun 23Ascot6fC1The Antarctic (IRE)Unknown Jockey
15:05 23rd Jun 23Ascot6fC1Meditate (IRE)Unknown Jockey
16:20 23rd Jun 23Ascot7f 213yC1Jackie Oh (IRE)Unknown Jockey
16:20 23rd Jun 23Ascot7f 213yC1Never Ending Story (IRE)Unknown Jockey
16:20 23rd Jun 23Ascot7f 213yC1Meditate (IRE)Unknown Jockey
16:20 23rd Jun 23Ascot7f 213yC1Warm Heart (IRE)Unknown Jockey
16:20 23rd Jun 23Ascot7f 213yC1Red Riding Hood (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Covent Garden (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1DenmarkUnknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Drumroll (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Gooloogong (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Continuous (JPN)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Bertinelli (USA)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Greenland (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Auguste Rodin (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Adelaide River (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Alfred Munnings (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Cairo (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Gulf Of Mexico (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1San Antonio (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1The Prairie (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Tower Of London (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Peking Opera (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1PaddingtonUnknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Hiawatha (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Milwaukee (USA)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Londoner (IRE)Unknown Jockey
17:35 23rd Jun 23Ascot1m 3f 211yC1Mohawk Chief (USA)Unknown Jockey
15:40 24th Jun 23Ascot1m 3f 211yC1Broome (IRE)Unknown Jockey
15:40 24th Jun 23Ascot1m 3f 211yC1Bolshoi Ballet (IRE)Unknown Jockey
15:40 24th Jun 23Ascot1m 3f 211yC1Changingoftheguard (IRE)Unknown Jockey
15:40 24th Jun 23Ascot1m 3f 211yC1Emily Dickinson (IRE)Unknown Jockey
15:40 24th Jun 23Ascot1m 3f 211yC1Point Lonsdale (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fMother Nature (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fMayfair (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fMatrika (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fOpera Singer (USA)Unknown Jockey
14:15 1st Jul 23Curragh6fPort Fairy (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fGreenfinch (USA)Unknown Jockey
14:15 1st Jul 23Curragh6fYlang YlangUnknown Jockey
14:15 1st Jul 23Curragh6fSweetest (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fButtons (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fBrilliant (IRE)Unknown Jockey
14:15 1st Jul 23Curragh6fBrighter (FR)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fJackie Oh (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fLambada (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fDame Kiri (USA)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fBe Happy (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fMeditate (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fBoogie Woogie (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fLibrary (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fWarm Heart (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fNever Ending Story (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fUnless (USA)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fWater Nymph (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fSavethelastdance (IRE)Unknown Jockey
15:25 1st Jul 23Curragh1m 2fRed Riding Hood (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fDemocracy (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fDublin (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fCity Of Troy (USA)Unknown Jockey
13:50 2nd Jul 23Curragh6fAlabama (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fHis Majesty (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fAir Commander (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fCarnegie Hall (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fMountain Bear (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fUnquestionable (FR)Unknown Jockey
13:50 2nd Jul 23Curragh6fIgor Stravinsky (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fRiver Tiber (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fThe Liffey (IRE)Unknown Jockey
13:50 2nd Jul 23Curragh6fJohannes BrahmsUnknown Jockey
13:50 2nd Jul 23Curragh6fOld Faithful (FR)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fDenmarkUnknown Jockey
15:40 2nd Jul 23Curragh1m 4fDuke Cador (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fGooloogong (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fCovent Garden (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fGreenland (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fEspionage (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fAlfred Munnings (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fAdelaide River (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fHans AndersenUnknown Jockey
15:40 2nd Jul 23Curragh1m 4fAlexandroupolis (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fAuguste Rodin (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fCairo (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fContinuous (JPN)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fGulf Of Mexico (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fThe Black Tiger (USA)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fSan Antonio (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fThe Prairie (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fTower Of London (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fVictoria Road (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fPeking Opera (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fQueenstown (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fPaddingtonUnknown Jockey
15:40 2nd Jul 23Curragh1m 4fHiawatha (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fLondoner (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fKing Leodegrance (IRE)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fMilwaukee (USA)Unknown Jockey
15:40 2nd Jul 23Curragh1m 4fMohawk Chief (USA)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Auguste Rodin (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Cairo (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Point Lonsdale (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Continuous (JPN)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Adelaide River (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Luxembourg (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Greenland (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Meditate (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1Never Ending Story (IRE)Unknown Jockey
16:45 8th Jul 23Sandown Park1m 1f 209yC1PaddingtonUnknown Jockey
16:10 15th Jul 23Newmarket6fC1Hispanic (IRE)Unknown Jockey
16:10 15th Jul 23Newmarket6fC1Aesop's Fables (IRE)Unknown Jockey
16:10 15th Jul 23Newmarket6fC1Little Big Bear (IRE)Unknown Jockey
16:10 15th Jul 23Newmarket6fC1Age Of Kings (IRE)Unknown Jockey
16:10 15th Jul 23Newmarket6fC1The Antarctic (IRE)Unknown Jockey
16:10 15th Jul 23Newmarket6fC1Meditate (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fRed Carpet (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fLibrary (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fNever Ending Story (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fLambada (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fBe Happy (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fRed Riding Hood (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fBoogie Woogie (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fDame Kiri (USA)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fDower House (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fWater Nymph (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fWedding Bouquet (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fWorld Peace (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fAll Time Great (USA)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fWarm Heart (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fUnless (USA)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fStarry Eyed (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fSweetest Thing (IRE)Unknown Jockey
00:00 22nd Jul 23Curragh1m 4fSavethelastdance (IRE)Unknown Jockey

Many punters are regularly searching for “A P O’Brien runners today” due to the yard being voted in the top in-form trainers for June 2023.

Aidan O’Brien Recent Form

PeriodRuns1st2nd3rdWin%£ level stake
Season (Combined )2573628.0-1.74

Key Stats of Trainer Aidan O’Brien

Name – Aidan O’Brien

Date of Birth – 16 October 1969

Birthplace – County Wexford

Racing Yard – Ballydoyle, County Tipperary

Big Wins: Epsom Derby, Epsom Oaks, 2000 Guineas, 1,000 Guineas, St Leger, Irish Derby, King George VI & Queen Elizabeth Stakes, Eclipse Stakes, Prix de l’Arc de Triomphe, Ascot Gold Cup, Breeders’ Cup Turf, Champion Hurdle …the list is endless!

Aidan O’Brien – Trainer Profile

Aidan O’Brien is a son of small-scale racehorse trainer Denis and he gained further experience with P.J. Finn and later Jim Bulger.

He briefly took over the yard of father-in-law Joe Crowley in 1993, becoming champion National Hunt trainer in Ireland in 1993-1994. He would retain that title for five seasons, taking the helm for leading owner John Magnier at Ballydoyle in 1996.

Istabraq helped to establish O’Brien’s reputation as the rising star in the Irish training ranks with three Champion Hurdle victories.

His first Group 1 success on the flat came with Desert King in the 1996 National Stakes, the same horse providing him with a maiden Classic win in the Irish 2000 Guineas the following season.

In 2001 he emulated legendary trainer Vincent O’Brien by being crowned Champion Trainer in Britain.

Aidan O’Brien – Key Trainer Stats

O’Brien recorded his first century in a calendar year in 1997 with 116 winners.

His best year numerically was in 2018 with 154 winners.

That eclipsed his previous best tally of 139 in 2013.

His 103 winners in a compressed 2020 season was his eighth consecutive ton and the eleventh of his career.

He was Champion Trainer in Britain for the first time in 2001 and retained the title in 2002. He also claimed the title in 2007, 2008, 2016 and 2017.

O’Brien was Champion National Hunt trainer in Ireland for five successive seasons from 1992-93 to 1997-98.

He topped the Irish Champion Flat figures for the first time in 1997.

Dermot Weld took the crown in 1998 but O’Brien has dominated every year since, claiming a remarkable 22nd consecutive title in 2020.

Aidan O’Brien’s Big Race Wins

For all the many Classic winners trained by O’Brien, perhaps two of his most famous stars remain three-time Champion Hurdle winner Istabraq and four-time Ascot Gold Cup winner Yeats.

Istabraq won the Champion Hurdle at Cheltenham in 1998, 1999 and 2000 but was denied a possible fourth victory when the 2001 meeting was lost to the outbreak of foot and mouth.

He also won four Irish Champion Hurdles in the colours of JP McManus.

Yeats was favourite for the 2004 Epsom Derby but met with an injury after winning the Derrinstown Stud Derby Trial. He returned as a four-year-old, winning the Coronation Cup and the Irish St Leger. He came into his own as a Gold Cup horse in 2006, going on to win the Ascot Gold Cup for a record four successive seasons.

O’Brien is a multiple winner of all the English and Irish Classic races.

Horses to stand out here include Galileo (2001), High Chaparral (2002) and Australia (2014), all winners of both the English and Irish Derby. Famous milers include Rock of Gibraltar and Giant’s Causeway. Rock of Gibraltar won both the English and Irish 2000 Guineas in 2002 and recorded seven consecutive Group 1 victories.

Giant’s Causeway was runner-up in both Classics but won five straight Group 1’s and gained a reputation as “The Iron Horse”.

Aidan O’Brien’s – Most Famous Victories

There have been so many great races and famous victories for O’Brien that it is almost impossible to narrow it down to a handful of winners.

Rock of Gibraltar’s 2000 Guineas win at Newmarket Racecourse came at the expense of heavily-backed stable companion Hawk Wing.

Rock of Gibraltar would go on to become 2002 European Horse of the Year whereas Hawk Wing would top the World Thoroughbred Rankings in 2003. His 11 lengths win in the Lockinge Stakes at Newbury Racecourse earned a Timeform rating of 136, the highest recorded over a mile for ten years.

High Chaparral won the Breeders’ Cup Turf in 2002 and 2003, the first horse to win the race twice. His 2003 victory involved a thrilling three-way photo with the verdict being a dead-heat between High Chaparral and Johar.

St Nicholas Abbey was a terrific flagbearer for Ballydoyle, winning three Coronation Cups and taking a memorable 2011 Breeders’ Cup Turf.

Other famous names to pass through Ballydoyle include Dylan Thomas, Camelot, Highland Reel, Minding, Found and Magical.

Summary of Aidan O’Brien

Aidan O’Brien continues to break all records in Ireland and Great Britain, mopping up Classic races and Group 1 events.

With sons Joseph and Donnacha already making their mark in the training ranks, the O’Brien name looks set to dominate for a long time to come.

Other Leading Horse Racing Trainers

As the Co-Founder of British Racecourses, I love the chance to share my enjoyment of racing with others. As a family, we have always loved the racing and went to Haydock races as kids, as often as we could. We are now lucky enough to own some fantastic racehorses who we will follow around the tracks and we have had some great wins. As part of British Racecourses, I enjoy visiting and reviewing the racecourses that we visit, all of which I think have something to offer and are brilliant in their own ways.