Horses in United States
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| Name | Last Run |
|---|---|
| Arbiter | Turfway Park, 18-Dec-25 |
| Arbitro | Sunray Park, 18-May-25 |
| Arbitro | Horseshoe Indianapolis, 10-Aug-25 |
| Arboreta | Wodonga, 28-Jul-13 |
| Arcadia Cafe | Tokyo, 29-Nov-25 |
| Arcadia Calls | Tampa Bay Downs, 04-Jan-23 |
| Arcadian | Charles Town, 06-Dec-25 |
| Arcangelo | Saratoga, 27-Aug-23 |
| Arch City | Sunland Park, 12-Jan-26 |
| Arch Competitor | Monmouth Park, 29-Jul-24 |
| Arch Ego | Mountaineer, 24-Jul-24 |
| Arch Fire | Ladbrokes Park Lakeside, 27-May-17 |
| Arch Flyer | Fairmount Park, 15-Nov-23 |
| Arch Of Swords | Will Rogers Downs, 14-May-25 |
| Arch Street | Gulfstream, 27-Jan-25 |
| Arch's Assault | Finger Lakes, 20-Nov-25 |
| Archarch Cat | Thistledown, 01-May-24 |
| Archean | Moonee Valley, 23-Sep-16 |
| Archie The Giza | Churchill Downs, 01-Dec-25 |
| Archimedes | Fair Grounds, 04-Jan-26 |
| Archivist | Finger Lakes, 25-Sep-24 |
| Arco Augusta | Belmont At The Big A, 23-Jun-24 |
| Arctic Beast | Remington Park, 21-Dec-25 |
| Arctic Blonde | Woodbine, 10-Nov-24 |
| Arctic Breeze | Santa Anita, 23-Feb-25 |
| Arctic Fire | Ferndale, 24-Aug-24 |
| Arctic Outbreak | Penn National, 05-Dec-25 |
| Arctic Rose | Louisiana Downs, 16-Jul-24 |
| Arctic Velocity | Kentucky Downs, 31-Aug-25 |
| Arctica | Penn National, 16-Dec-23 |
| Ardanwood | Delaware Park, 24-Aug-25 |
| Arde Fox | Ohi, 16-Jan-26 |
| Arden Ar | Mountaineer Park, 18-Nov-24 |
| Arden Mist | Chantilly, 27-Dec-25 |
| Arden's Assault | Churchill Downs, 25-Nov-23 |
| Arden'sluckytobe | Laurel Park, 29-Nov-25 |
| Ardent | Chantilly, 14-Jul-24 |
| Ardent Eye | Kyoto, 13-Oct-25 |
| Ardis | Fairmount Park, 01-Jun-25 |
| Arditamente | Charles Town, 13-Dec-25 |
| Ardtrea | Los Alamitos Racecourse, 17-Sep-23 |
| Arduous | Gulfstream, 09-Dec-23 |
| Are You A Spy | Turfway Park, 15-Mar-25 |
| Are You Happy | Finger Lakes, 10-May-23 |
| Are You Single | Gulfstream, 04-Sep-23 |
| Areacodefiveoone | Gulfstream, 24-Nov-25 |
| Arella Star | Churchill Downs, 16-Sep-24 |
| Arete | Colonial Downs, 15-Aug-25 |
| Arete's Chalice | Gulfstream, 17-Feb-23 |
| Areuhavingfunyet | Churchill Downs, 13-Nov-23 |
| Areuokwiththis | Gulfstream, 20-Aug-23 |
| Areyougonnakissme | Charles Town, 22-Nov-24 |
| Arfons | Seoul, 07-May-23 |
| Argan | Oaklawn Park, 15-Dec-25 |
| Argentiera | Aqueduct, 07-Dec-25 |
| Argentina Girl | Laurel Park, 01-Feb-25 |
| Argentinidad | Turfway Park, 17-Jan-26 |
| Argentium | Woodbine, 14-Dec-24 |
| Argos | Ellis Park, 14-Jul-25 |
| Arguing Louise | Fair Grounds, 09-Jan-26 |