Horses in Ireland
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| Name | Last Run |
|---|---|
| Oolong Hai | Monmouth Park, 29-Jul-24 |
| Opaque | Limerick, 07-Jul-24 |
| Opasan | Vichy, 17-Jul-24 |
| Open Champion | Lingfield, 26-Sep-23 |
| Open Market | Newcastle, 08-Nov-23 |
| Open The Gate | Clonmel, 09-Nov-23 |
| Opera Mundi | Turfway Park, 26-Jan-25 |
| Opera Night | Fairyhouse, 01-Jan-24 |
| Operate | Brighton, 26-Jun-24 |
| Operatic Artist | Lingfield, 25-Nov-23 |
| Operation Overlord | Carlisle, 08-Apr-23 |
| Opportunity Knocks | Chelmsford City, 20-Oct-23 |
| Optik | Chelmsford City, 07-Apr-24 |
| Optimal Sinn | Lingfield, 13-Dec-23 |
| Optimise Prime | Uttoxeter, 19-Mar-23 |
| Optimistic Belief | Kempton, 11-Feb-23 |
| Optimistic Joe | Worcester, 01-Jun-24 |
| Optional Mix | Limerick, 29-Jan-25 |
| Orange Avenue | Bellewstown, 28-Aug-24 |
| Orange N Blue | Newcastle, 22-Jan-25 |
| Oranmore | Bellewstown, 05-Jul-24 |
| Orbys River | Warwick, 15-Apr-25 |
| Orchard Grove | Exeter, 26-Nov-23 |
| Orchestral Rain | Ludlow, 26-Oct-23 |
| Orchidia | Ladbrokes Park Lakeside, 01-Jul-20 |
| Orczy | Emerald Downs, 02-Jul-23 |
| Order Of Australia | Sha Tin, 11-Dec-22 |
| Orderofthephoenix | Woodbine, 27-Apr-25 |
| Ordo Ab Chao | Stratford, 22-Jul-18 |
| Origen | Mont De Marsan, 14-Sep-24 |
| Originally | Lingfield, 04-Mar-23 |
| Origintrail | Hamilton, 30-Sep-24 |
| Orihime | Chantilly, 26-Nov-22 |
| Orinoco Flow | Chepstow, 30-Oct-24 |
| Orlock Point | Punchestown, 16-Jan-23 |
| Ormering Tide | Wolverhampton, 24-Sep-24 |
| Ormond Poet | Clonmel, 08-Dec-22 |
| Orofina | Deauville, 29-Dec-24 |
| Orpington | Thurles, 30-Nov-23 |
| Ortigia | Fontwell, 31-Aug-24 |
| Oryx Hustler | Kilbeggan, 13-May-23 |
| Oscar Elite | Ayr, 22-Apr-23 |
| Oscar Mike | Salisbury, 15-Aug-24 |
| Oscar Thyne | Ffos Las, 01-Feb-23 |
| Oscar West | Fairyhouse, 01-Jan-23 |
| Oscars Moonshine | Fontwell, 23-Oct-24 |
| Oscer Romero | Wexford, 20-Jun-23 |
| Oscula | Lingfield, 27-Oct-22 |
| Oshano | Chantilly, 21-Sep-24 |
| Oskar | Thirsk, 04-Apr-23 |
| Oso Rapido | Southwell, 05-Nov-24 |
| Osprey | Curragh, 03-Nov-24 |
| Osprey Call | Wetherby, 28-Oct-22 |
| Osraige | Dundalk, 24-Nov-22 |
| Ossie's Lodge | Fairyhouse, 15-Jun-24 |
| Ostfalen | Nagoya, 27-Feb-24 |
| Ostraka | Cork, 14-Jun-25 |
| Otto Flash | ParisLongchamp, 18-Apr-24 |
| Ottoman Prince | Santa Anita, 08-Jun-25 |
| Ounce Of Gold | Tipperary, 02-Jul-24 |