Donnacha Aidan O'Brien
Trainer record & statistics — 2025-03-23 to 2026-06-03, from a decade of UK & Irish racing data.
-4.6%
Level-stake ROI (SP)
Over this period Donnacha Aidan O'Brien has won 41 of 296 races (a 13.9% strike rate, an actual/expected ratio of 0.9 versus the market). Below is the full breakdown by course, going and recent form.
Record by course
| Course | Runs | Wins | SR |
|---|
| 55 | 9 | 16.4% |
| 49 | 10 | 20.4% |
| 40 | 4 | 10.0% |
| 32 | 7 | 21.9% |
| 24 | 0 | 0.0% |
| 17 | 0 | 0.0% |
| 14 | 2 | 14.3% |
| 13 | 4 | 30.8% |
Record by going
| Going | Runs | Wins | SR |
|---|
| 128 | 16 | 12.5% |
| 90 | 12 | 13.3% |
| 49 | 10 | 20.4% |
| 17 | 3 | 17.6% |
Most successful horses
| Horse | Runs | Wins | SR |
|---|
| 10 | 3 | 30.0% |
| 6 | 3 | 50.0% |
| 12 | 2 | 16.7% |
| 9 | 2 | 22.2% |
| 7 | 2 | 28.6% |
| 6 | 2 | 33.3% |
| 6 | 2 | 33.3% |
| 6 | 2 | 33.3% |
| 3 | 2 | 66.7% |
| 8 | 1 | 12.5% |
| 7 | 1 | 14.3% |
| 7 | 1 | 14.3% |
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Recent runs
| Date | Course | Horse | Finish | SP |
|---|
| 2026-06-03 | Curragh | Tradewinds (IRE) | 3 | 5.0 |
| 2026-06-03 | Curragh | Little Miss Muffet (IRE) | 5 | 13.0 |
| 2026-06-03 | Curragh | Kilmac Air (IRE) | 6 | 8.0 |
| 2026-05-31 | Listowel | Hip Hop Chrissy (IRE) | 3 | 9.0 |
| 2026-05-31 | Listowel | Kraar (IRE) | 7 | 21.0 |
| 2026-05-29 | Down Royal | Gatlinburg (IRE) | 10 | 6.5 |
| 2026-05-29 | Down Royal | Eniac (IRE) | 9 | 3.8 |
| 2026-05-28 | Fairyhouse | High King (IRE) | 1 | 11.0 |
| 2026-05-26 | Dundalk (AW) | Police Gazette (USA) | 3 | 23.0 |
| 2026-05-26 | Dundalk (AW) | Yogini (IRE) | 6 | 15.0 |
| 2026-05-24 | Curragh | Kilmeaden (IRE) | 3 | 8.0 |
| 2026-05-24 | Curragh | Kensington Lane (IRE) | 5 | 29.0 |
| 2026-05-23 | Curragh | Shaihaan (IRE) | 3 | 11.0 |
| 2026-05-23 | Curragh | Numantia (IRE) | 4 | 9.0 |
| 2026-05-23 | Curragh | South Island (IRE) | 5 | 29.0 |
| 2026-05-23 | Curragh | Comanche Brave (IRE) | 1 | 2.8 |
| 2026-05-19 | Cork | Benaki (IRE) | 7 | 6.5 |
| 2026-05-19 | Cork | Kilmac Air (IRE) | 3 | 3.2 |
| 2026-05-19 | Cork | Away And Gone (IRE) | 7 | 4.0 |
| 2026-05-19 | Cork | Alrashdeyah (IRE) | 4 | 6.5 |
Data: official UK & Irish results, 2025-03-23–2026-06-03. Strike rate and ROI are historical and not a guarantee of future results. 18+ · BeGambleAware.