Aidan O'Brien
Breeders' Cup record, 1998–2025
Aidan O'Brien has saddled 189 Breeders' Cup starters since 1998, winning 20 (11%) — most often the Juvenile Turf, with $36,103,520 in purse money.
189Starts
20Wins
262nd
153rd
11%Win rate
32%In the money
$36,103,520Earnings
2026 runners
| Race | Horse | M/L |
|---|---|---|
| 2026 Juvenile Fillies Turf | Sun Goddess (IRE) | 6/5 |
| 2026 Juvenile Turf | Florida Bay (IRE) | 20/1 |
| 2026 Juvenile Turf | Haffner | 8/1 |
| 2026 Juvenile Turf | Man's Best Friend (IRE) | 15/1 |
| 2026 Juvenile Turf | Great Barrier Reef (IRE) | 4/1 |
| 2026 Filly & Mare Turf | Precise (IRE) | 7/2 |
| 2026 Mile | True Love (IRE) | 8/1 |
| 2026 Mile | Puerto Rico (IRE) | 10/1 |
| 2026 Turf | Benvenuto Cellini (IRE) | 6/1 |
| 2026 Turf | Diamond Necklace (IRE) | 3/1 |
Breeders' Cup wins
| Year | Race | Horse | Odds |
|---|---|---|---|
| 2025 | Juvenile Turf | Gstaad (GB) | 1.20 |
| 2024 | Juvenile Fillies Turf | Lake Victoria (IRE) | 0.70 |
| 2024 | Juvenile Turf | Henri Matisse (IRE) | 3.90 |
| 2023 | Juvenile Turf | Unquestionable (FR) | 1.50 |
| 2023 | Turf | Auguste Rodin (IRE) | 2.50 |
| 2022 | Filly & Mare Turf | Tuesday (IRE) | 4.19 |
| 2022 | Juvenile Fillies Turf | Meditate (IRE) | 2.04 |
| 2022 | Juvenile Turf | Victoria Road (IRE) | 5.57 |
| 2020 | Mile | Order of Australia (IRE) | 73.20 |
| 2017 | Juvenile Turf | Mendelssohn | 4.80 |
| 2016 | Turf | Highland Reel (IRE) | 3.80 |
| 2015 | Juvenile Turf | Hit It a Bomb | 7.20 |
| 2015 | Turf | Found (IRE) | 6.40 |
| 2013 | Turf | Magician (IRE) | 12.50 |
| 2012 | Juvenile Turf | George Vancouver | 9.30 |
| 2011 | Juvenile Turf | Wrote (IRE) | 11.60 |
| 2011 | Turf | St Nicholas Abbey (IRE) | 6.80 |
| 2003 | Turf | High Chaparral (IRE) | 4.90 |
| 2002 | Turf | High Chaparral (IRE) | 0.90 |
| 2001 | Juvenile | Johannesburg | 7.20 |
By race
| Race | Starts | Wins | Top 3 |
|---|---|---|---|
| Juvenile Turf | 25 | 8 | 14 |
| Turf | 37 | 7 | 18 |
| Juvenile Fillies Turf | 19 | 2 | 6 |
| Mile | 30 | 1 | 9 |
| Filly & Mare Turf | 21 | 1 | 6 |
| Juvenile | 16 | 1 | 2 |
| Classic | 18 | 0 | 3 |
| Juvenile Turf Sprint | 10 | 0 | 2 |
| Turf Sprint | 5 | 0 | 1 |
| Juvenile Fillies | 4 | 0 | 0 |
| Dirt Mile | 2 | 0 | 0 |
| Sprint | 2 | 0 | 0 |
Every start
| Year | Race | Horse | Fin |
|---|---|---|---|
| 2025 | Filly & Mare Turf | Bedtime Story (IRE) | 5 |
| 2025 | Juvenile Turf | Gstaad (GB) | 1 |
| 2025 | Juvenile Turf Sprint | Brussels (GB) | 2 |
| 2025 | Juvenile Turf Sprint | True Love (IRE) | 8 |
| 2025 | Juvenile Turf Sprint | Mission Central (IRE) | 10 |
| 2025 | Mile | The Lion In Winter (IRE) | 3 |
| 2025 | Turf | Minnie Hauk (IRE) | 6 |
| 2024 | Classic | City of Troy | 8 |
| 2024 | Filly & Mare Turf | Content (IRE) | 6 |
| 2024 | Juvenile Fillies Turf | Lake Victoria (IRE) | 1 |
| 2024 | Juvenile Fillies Turf | Heavens Gate (IRE) | 11 |
| 2024 | Juvenile Turf | Henri Matisse (IRE) | 1 |
| 2024 | Juvenile Turf Sprint | Whistlejacket (IRE) | 5 |
| 2024 | Juvenile Turf Sprint | Ides of March (IRE) | 7 |
| 2024 | Turf | Wingspan (IRE) | 5 |
| 2024 | Turf | Luxembourg (IRE) | 6 |
| 2023 | Filly & Mare Turf | Warm Heart (IRE) | 2 |
| 2023 | Juvenile Fillies Turf | Content (IRE) | 4 |
| 2023 | Juvenile Turf | Unquestionable (FR) | 1 |
| 2023 | Juvenile Turf | Mountain Bear (IRE) | 2 |
| 2023 | Juvenile Turf Sprint | Cherry Blossom (IRE) | 8 |
| 2023 | Turf | Auguste Rodin (IRE) | 1 |
| 2023 | Turf | Broome (IRE) | 11 |
| 2023 | Turf Sprint | Aesop's Fables (IRE) | 3 |
| 2022 | Filly & Mare Turf | Tuesday (IRE) | 1 |
| 2022 | Filly & Mare Turf | Toy (IRE) | 9 |
| 2022 | Juvenile Fillies Turf | Meditate (IRE) | 1 |
| 2022 | Juvenile Turf | Victoria Road (IRE) | 1 |
| 2022 | Mile | Order of Australia (IRE) | 6 |
| 2022 | Turf | Stone Age (IRE) | 2 |
| 2022 | Turf | Broome (IRE) | 6 |
| 2021 | Filly & Mare Turf | Love (IRE) | 4 |
| 2021 | Juvenile Turf | Glounthaune (IRE) | 12 |
| 2021 | Mile | Mother Earth (IRE) | 10 |
| 2021 | Turf | Broome (IRE) | 2 |
| 2021 | Turf | Japan (GB) | 4 |
| 2021 | Turf | Bolshoi Ballet (IRE) | 6 |
| 2020 | Filly & Mare Turf | Peaceful (IRE) | 11 |
| 2020 | Juvenile Fillies Turf | Mother Earth (IRE) | 2 |
| 2020 | Juvenile Turf | Battleground | 2 |
| 2020 | Juvenile Turf Sprint | Lipizzaner | 4 |
| 2020 | Mile | Order of Australia (IRE) | 1 |
| 2020 | Mile | Circus Maximus (IRE) | 2 |
| 2020 | Mile | Lope Y Fernandez (IRE) | 3 |
| 2020 | Turf | Magical (IRE) | 2 |
| 2020 | Turf | Mogul (GB) | 5 |
| 2019 | Filly & Mare Turf | Just Wonderful | 5 |
| 2019 | Juvenile Fillies Turf | Tango (IRE) | 8 |
| 2019 | Juvenile Fillies Turf | Etoile | 10 |
| 2019 | Juvenile Turf | Arizona (IRE) | 5 |
| 2019 | Juvenile Turf | Fort Myers | 7 |
| 2019 | Juvenile Turf Sprint | King Neptune | 11 |
| 2019 | Mile | Circus Maximus (IRE) | 4 |
| 2019 | Turf | Anthony Van Dyck (IRE) | 3 |
| 2019 | Turf | Mount Everest (IRE) | 6 |
| 2018 | Classic | Mendelssohn | 5 |
| 2018 | Filly & Mare Turf | Magic Wand (IRE) | 4 |
| 2018 | Filly & Mare Turf | Athena (IRE) | 5 |
| 2018 | Juvenile Fillies Turf | Just Wonderful | 4 |
| 2018 | Juvenile Turf | Anthony Van Dyck (IRE) | 9 |
| 2018 | Juvenile Turf Sprint | So Perfect | 3 |
| 2018 | Juvenile Turf Sprint | Sergei Prokofiev | 8 |
| 2018 | Mile | Clemmie (IRE) | 6 |
| 2018 | Mile | Happily (IRE) | 8 |
| 2018 | Mile | Gustav Klimt (IRE) | 9 |
| 2018 | Mile | I Can Fly (GB) | 12 |
| 2018 | Turf | Magical (IRE) | 2 |
| 2018 | Turf | Hunting Horn (IRE) | 8 |
| 2018 | Turf Sprint | Lost Treasure (IRE) | 7 |
| 2017 | Classic | Churchill (IRE) | 7 |
| 2017 | Classic | War Decree | 9 |
| 2017 | Filly & Mare Turf | Rhododendron (IRE) | 2 |
| 2017 | Juvenile | U S Navy Flag | 10 |
| 2017 | Juvenile Fillies Turf | September (IRE) | 3 |
| 2017 | Juvenile Fillies Turf | Happily (IRE) | 14 |
| 2017 | Juvenile Turf | Mendelssohn | 1 |
| 2017 | Mile | Lancaster Bomber | 2 |
| 2017 | Mile | Roly Poly | 11 |
| 2017 | Turf | Highland Reel (IRE) | 3 |
| 2017 | Turf | Seventh Heaven (IRE) | 5 |
| 2017 | Turf | Cliffs of Moher (IRE) | 8 |
| 2017 | Turf Sprint | Washington DC (IRE) | 8 |
| 2016 | Filly & Mare Turf | Seventh Heaven (IRE) | 4 |
| 2016 | Filly & Mare Turf | Pretty Perfect (IRE) | 13 |
| 2016 | Juvenile Fillies Turf | Roly Poly | 9 |
| 2016 | Juvenile Fillies Turf | Hydrangea (IRE) | 14 |
| 2016 | Juvenile Turf | Lancaster Bomber | 2 |
| 2016 | Juvenile Turf | Intelligence Cross | 9 |
| 2016 | Mile | Cougar Mountain (IRE) | 8 |
| 2016 | Mile | Hit It a Bomb | 9 |
| 2016 | Mile | Alice Springs (IRE) | 10 |
| 2016 | Turf | Highland Reel (IRE) | 1 |
| 2016 | Turf | Found (IRE) | 3 |
| 2016 | Turf Sprint | Washington DC (IRE) | 7 |
| 2015 | Classic | Gleneagles (IRE) | 8 |
| 2015 | Dirt Mile | War Envoy | 11 |
| 2015 | Juvenile | Waterloo Bridge (IRE) | 9 |
| 2015 | Juvenile Fillies Turf | Alice Springs (IRE) | 2 |
| 2015 | Juvenile Turf | Hit It a Bomb | 1 |
| 2015 | Juvenile Turf | Shogun (IRE) | 10 |
| 2015 | Turf | Found (IRE) | 1 |
| 2014 | Juvenile | The Great War | 4 |
| 2014 | Juvenile Fillies Turf | Qualify (IRE) | 8 |
| 2014 | Juvenile Turf | War Envoy | 12 |
| 2014 | Turf | Chicquita (IRE) | 5 |
| 2013 | Classic | Declaration of War | 3 |
| 2013 | Juvenile Turf | Giovanni Boldini | 2 |
| 2013 | Juvenile Turf | Wilshire Boulevard (IRE) | 9 |
| 2013 | Mile | Cristoforo Colombo | 7 |
| 2013 | Turf | Magician (IRE) | 1 |
| 2012 | Filly & Mare Turf | Up (IRE) | 7 |
| 2012 | Juvenile Fillies Turf | Infanta Branca | 10 |
| 2012 | Juvenile Turf | George Vancouver | 1 |
| 2012 | Juvenile Turf | Lines of Battle | 7 |
| 2012 | Mile | Excelebration (IRE) | 4 |
| 2012 | Turf | St Nicholas Abbey (IRE) | 3 |
| 2012 | Turf | Treasure Beach (GB) | 10 |
| 2012 | Turf Sprint | Starspangledbanner (AUS) | 10 |
| 2011 | Classic | So You Think (NZ) | 6 |
| 2011 | Filly & Mare Turf | Misty For Me (IRE) | 3 |
| 2011 | Juvenile | Crusade | 6 |
| 2011 | Juvenile | Daddy Long Legs | 12 |
| 2011 | Juvenile Fillies | Homecoming Queen (IRE) | 14 |
| 2011 | Juvenile Fillies Turf | Up (IRE) | 4 |
| 2011 | Juvenile Turf | Wrote (IRE) | 1 |
| 2011 | Mile | Zoffany (IRE) | 9 |
| 2011 | Turf | St Nicholas Abbey (IRE) | 1 |
| 2011 | Turf | Await the Dawn | 7 |
| 2010 | Juvenile Fillies Turf | Together (IRE) | 5 |
| 2010 | Juvenile Turf | Master of Hounds | 6 |
| 2010 | Mile | Beethoven (IRE) | 10 |
| 2009 | Classic | Rip Van Winkle (IRE) | 10 |
| 2009 | Dirt Mile | Mastercraftsman (IRE) | 4 |
| 2009 | Juvenile | Beethoven (IRE) | 6 |
| 2009 | Juvenile | Alfred Nobel (IRE) | 10 |
| 2009 | Juvenile Fillies Turf | Lillie Langtry (IRE) | 8 |
| 2009 | Juvenile Turf | Viscount Nelson | 8 |
| 2008 | Classic | Henrythenavigator | 2 |
| 2008 | Classic | Duke of Marmalade (IRE) | 9 |
| 2008 | Filly & Mare Turf | Halfway To Heaven (IRE) | 6 |
| 2008 | Juvenile Fillies Turf | Heart Shaped | 2 |
| 2008 | Juvenile Turf | Westphalia (IRE) | 2 |
| 2008 | Mile | U S Ranger | 5 |
| 2008 | Turf | Soldier of Fortune (IRE) | 4 |
| 2008 | Turf | Red Rock Canyon (IRE) | 6 |
| 2007 | Classic | George Washington (IRE) | 9 |
| 2007 | Filly & Mare Turf | All My Loving (IRE) | 5 |
| 2007 | Juvenile Turf | Achill Island (IRE) | 2 |
| 2007 | Mile | Excellent Art (GB) | 2 |
| 2007 | Turf | Dylan Thomas (IRE) | 5 |
| 2006 | Classic | George Washington (IRE) | 6 |
| 2006 | Mile | Aussie Rules | 8 |
| 2006 | Mile | Ad Valorem | 13 |
| 2006 | Turf | Scorpion (IRE) | 5 |
| 2005 | Classic | Oratorio (IRE) | 11 |
| 2005 | Filly & Mare Turf | Mona Lisa (GB) | 10 |
| 2005 | Juvenile | Ivan Denisovich (IRE) | 12 |
| 2005 | Mile | Ad Valorem | 9 |
| 2005 | Turf | Ace (IRE) | 2 |
| 2004 | Filly & Mare Turf | Yesterday (IRE) | 5 |
| 2004 | Juvenile | Scandinavia | 8 |
| 2004 | Juvenile Fillies | Mona Lisa (GB) | 11 |
| 2004 | Mile | Antonius Pius | 2 |
| 2004 | Turf | Powerscourt (GB) | 3 |
| 2003 | Classic | Hold That Tiger | 5 |
| 2003 | Filly & Mare Turf | L'Ancresse (IRE) | 2 |
| 2003 | Filly & Mare Turf | Yesterday (IRE) | 3 |
| 2003 | Turf | High Chaparral (IRE) | 1 |
| 2002 | Classic | Hawk Wing | 7 |
| 2002 | Juvenile | Hold That Tiger | 3 |
| 2002 | Juvenile | Van Nistelrooy | 5 |
| 2002 | Juvenile | Tomahawk | 8 |
| 2002 | Mile | Rock of Gibraltar (IRE) | 2 |
| 2002 | Mile | Landseer (GB) | 14 |
| 2002 | Turf | High Chaparral (IRE) | 1 |
| 2001 | Classic | Galileo (IRE) | 6 |
| 2001 | Classic | Black Minnaloushe | 10 |
| 2001 | Juvenile | Johannesburg | 1 |
| 2001 | Juvenile Fillies | Sophisticat | 5 |
| 2001 | Mile | Bach (IRE) | 3 |
| 2001 | Sprint | Mozart (IRE) | 11 |
| 2001 | Turf | Milan (GB) | 2 |
| 2000 | Classic | Giant's Causeway | 2 |
| 2000 | Juvenile | Turnberry Isle (IRE) | 6 |
| 1999 | Juvenile | Mull of Kintyre | 4 |
| 1999 | Juvenile | Brahms | 7 |
| 1999 | Juvenile Fillies | Warrior Queen | 8 |
| 1999 | Sprint | Stravinsky | 6 |
| 1998 | Mile | Second Empire (IRE) | 6 |
Breeders' Cup starts since 1991, from the official charts. Earnings are purse money won by the horse in these races.