Sean O O'Brien

Trainer

Record

19 runs, 1 wins — 5.26% strike rate. Placed 1 times (0 second, 1 third).

Last ran Monday, 10 August 2026.

Form

Runs cover Great Britain over the last twelve months, and Ireland from 16 August 2026 onwards. A record here is what the bank holds, not a career total.

  1. 14 — Ballinrobe (IRE) (IRE) , Monday, 10 August 2026

    7:57. Bay Leaf Maiden Hurdle , 2m6½f , going Good , 14 ran . Started at 300/1 , beaten 44 lengths

    Likeyouhaveplenty (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  2. 13 — Roscommon (IRE) , Monday, 6 July 2026

    8:22. Irish Stallion Farms EBF Mares (Ladies Pro/Am) Flat Race , 1m7f204y , going Good , 16 ran . Started at 80/1 , beaten 13 lengths

    Likeyouhaveplenty (IRE) · Jockey Miss N Lockhead Anderson · · Owner Mark Mcdonagh

  3. 17 — Punchestown (IRE) , Sunday, 7 June 2026

    3:42. Lily & Wild Mares Maiden Hurdle , 2m5f139y , going Good To Yielding , 18 ran . Started at 250/1 , beaten 12 lengths

    Likeyouhaveplenty (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  4. PU — Punchestown (IRE) , Sunday, 7 June 2026

    2:32. K-Mech Mechanical Handicap Chase , 2m4f55y , going Good To Yielding , 12 ran . Started at 16/1 . Headgear p

    The Gradual Slope (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  5. PU — Cork (IRE) , Sunday, 10 May 2026

    4:25. Springfort Hall Country House Hotel Maiden Hurdle , 3m80y , going Good , 8 ran . Started at 80/1 . Headgear p

    Seek A Richer Life (IRE) · Jockey Alan O'Sullivan · · Owner Mark Mcdonagh

  6. PU — Tramore (IRE) , Sunday, 19 April 2026

    2:08. Irish Stallion Farms EBF Mares Maiden Hurdle , 2m , going Soft , 12 ran . Started at 66/1

    Likeyouhaveplenty (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  7. RO — Fairyhouse (IRE) , Saturday, 4 April 2026

    3:50. Tom Quinlan Electrical Maiden Hurdle , 2m4f , going Yielding To Soft , 25 ran . Started at 150/1

    Seek A Richer Life (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  8. Won — Fairyhouse (IRE) , Saturday, 4 April 2026

    3:15. Blackrock College AFC Ladies National Handicap Chase , 2m5f45y , going Yielding To Soft , 17 ran . Started at 16/1 . Headgear p

    The Gradual Slope (IRE) · Jockey Miss N Lockhead Anderson · · Owner Mark Mcdonagh

  9. PU — Downpatrick (IRE) , Sunday, 29 March 2026

    2:42. Hood McGowan Kirk Handicap Hurdle (0-100) , 2m5f185y , going Yielding To Soft , 14 ran . Started at 50/1 . Headgear tb

    Mister Persistence (IRE) · Jockey Cian Quirke · · Owner Mark Mcdonagh

  10. 4 — Down Royal (IRE) , Tuesday, 17 March 2026

    3:38. Bluegrass Racehorse Cube Chase , 3m2f50y , going Good To Yielding , 4 ran . Started at 66/1 , beaten 1.25 lengths . Headgear p

    The Gradual Slope (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  11. PU — Down Royal (IRE) , Tuesday, 17 March 2026

    2:28. Bluegrass Respire Handicap Hurdle (0-100) (Div 1) , 2m4f86y , going Yielding , 14 ran . Started at 50/1 . Headgear p

    Mister Persistence (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  12. 10 — Leopardstown (IRE) , Monday, 2 March 2026

    4:55. Dublin National Handicap Chase , 3m4f61y , going Yielding To Soft , 13 ran . Started at 20/1 , beaten 2.75 lengths . Headgear p

    The Gradual Slope (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  13. 5 — Leopardstown (IRE) , Monday, 2 March 2026

    2:25. Connolly's RED MILLS Irish EBF Auction Novice Hurdle , 2m , going Soft To Heavy , 6 ran . Started at 300/1 , beaten 31 lengths . Headgear p

    Mister Persistence (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  14. PU — Navan (IRE) , Sunday, 8 February 2026

    4:20. William Hill Each Way Extra Handicap Chase , 3m , going Heavy , 17 ran . Started at 18/1

    The Gradual Slope (IRE) · Jockey Danny Mullins · · Owner Mark Mcdonagh

  15. PU — Limerick (IRE) , Sunday, 28 December 2025

    2:50. Infinity Lifts Handicap Hurdle , 3m , going Soft To Heavy , 16 ran . Started at 20/1

    The Gradual Slope (IRE) · Jockey Danny Mullins · · Owner Mark Mcdonagh

  16. 3 — Thurles (IRE) , Saturday, 20 December 2025

    12:12. Molony Cup Handicap Chase , 3m1f66y , going Yielding , 16 ran . Started at 40/1 , beaten 2.75 lengths

    The Gradual Slope (IRE) · Jockey Sean O'Keeffe · · Owner Mark Mcdonagh

  17. PU — Fairyhouse (IRE) , Saturday, 13 December 2025

    2:15. William Hill Each Way Extra Challenge Series Handicap Hurdle (0-100) (Div 1) , 2m4f55y , going Soft , 18 ran . Started at 33/1

    Mister Persistence (IRE) · Jockey Donagh Meyler · · Owner Mark Mcdonagh

  18. F — Cork (IRE) , Sunday, 7 December 2025

    3:22. Greenvalley Transport Novice Handicap Hurdle (In Memory Of M.J. O'Connor) (0-100) , 2m4f , going Soft To Heavy , 24 ran . Started at 40/1

    Mister Persistence (IRE) · Jockey Mark McDonagh · · Owner Mark Mcdonagh

  19. UR — Navan (IRE) , Saturday, 6 December 2025

    2:17. Download The Tote App Foxrock Handicap Chase (0-150) (Listed) , 2m5f , going Soft To Heavy , 9 ran . Started at 25/1

    The Gradual Slope (IRE) · Jockey Calum Hogan · · Owner Mark Mcdonagh

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