| Anthony Russo | Gulfstream
13-Oct-24,
Guaranteed Speck |
| Anthony Saavedra | Los Alamitos Racecourse
22-Jun-25,
Silent Heat |
| Anthony Sciametta | Gulfstream
15-Mar-25,
Upstanding |
| Anthony Scott | Kentucky Downs
04-Sep-23,
Ridgerunner |
| Anthony Sexton | Bendigo
03-Jun-15,
Danzinar |
| Anthony Stephen | Churchill Downs
03-May-26,
Mitochondria |
| Anthony T. Quartarolo | |
| Anthony W. Dutrow | Belmont At The Big A
12-Jun-26,
Mermaid |
| Anthony Warren | Canberra Acton
12-Jun-26,
Valentine John |
| Anthony Webster | |
| Antonio Alberto | Fair Grounds
21-Mar-26,
Mae's Majesty |
| Antonio Arriaga | Monmouth Park
22-Jun-26,
Lika Rolling Stone |
| Antonio Ballesteros | Turf Paradise
22-Apr-26,
Juss Serious |
| Antonio Barreto | Palermo
19-Aug-23,
Arrantzale |
| Antonio Bernardo | San Isidro
25-Nov-24,
Talento Natural |
| Antonio C. Garcia | Los Alamitos Racecourse
22-Jun-26,
Lyndee'S Dream |
| Antonio Corbalan | San Isidro
09-Dec-24,
Dama Del Armino |
| Antonio Cordero | Tampa Bay Downs
27-Feb-25,
Don't Tell Amy |
| Antonio Duran | Horseshoe Indianapolis
23-Jun-26,
Speedy Spirit |
| Antonio F Fazzio | Palermo
21-Oct-23,
Expreso Latino |
| Antonio Fazzio | San Isidro
17-May-25,
Dra. Nazli |
| Antonio Flores | Los Alamitos Racecourse
23-Feb-26,
Golden And Blue |
| Antonio G G | Hipodromo Chile
09-May-25,
Garafulic |
| Antonio Garcia | Los Alamitos Racecourse
21-Jun-26,
Ride Like The Wolf |
| Antonio Gonzalez | San Isidro
20-Jun-24,
Secondi |
| Antonio M Corbalan | San Isidro
20-Jul-23,
Loyal Boy |
| Antonio Machado | Laurel Park
14-Jun-26,
Sinetic |
| Antonio Martinez | Sam Houston Race Park
23-Apr-23,
Patterns Of Insanity |
| Antonio Meraz | Hawthorne
01-Sep-25,
Hurts So Bad |
| Antonio R Said | Palermo
09-Oct-23,
Fresh Colours |
| Antonio S. Martinez | Remington Park
22-May-26,
Ss One Chance Fancy |
| Antonio Sano | Gulfstream
21-Jun-26,
Colombina |
| Antonio Soto | Turf Paradise
29-Apr-26,
Kamikaze Blue |
| Antony Alder | Echuca
10-Aug-25,
Panagsama |
| Antony Fuller | Ellerslie
20-Jun-26,
Khan Hunter |
| Antwain Ernest Franklin | Lone Star Park
20-Jun-26,
Wma Manilla |
| Antwain Franklin | Lone Star Park
23-Oct-22,
Rare Agouti Jm |
| April Cornell | Port Lincoln
11-Nov-22,
Chasing Stars |
| Aquilano | San Isidro
08-Feb-24,
Taimyra |
| Aracely Mejia | Lone Star Park
08-Jun-26,
Blinknumissit |
| Araki Michiya | Kasamatsu
12-Jun-26,
Memory Film |
| Arcadio Lopez | Finger Lakes
23-Jun-26,
Connor'S Turn |
| Archibald J. Kingsley, Jr. | Belmont At The Big A
19-Sep-25,
Bee Well |
| Archibald Kingsley, Jr | Colonial Downs
18-Jul-25,
Florianopolis |
| Archie Alexander | Pakenham Synthetic
22-Jun-26,
Dancing Dolly |
| Archie Harrison | Townsville
10-Apr-18,
Chomaru |
| Archie Watson | |
| Ariane Wilson | Presque Isle Downs
24-Oct-24,
Straight Madness |
| Ariel A Roble | |
| Ariel E Murillo | Palermo
18-Jun-23,
Mata Compadronas |
| Ariel H Torres | Palermo
29-Oct-23,
No Te Enoja |
| Ariel Lusardi | San Isidro
09-Dec-24,
Lo Straniero |
| Ariel Pereyra | San Isidro
09-Jun-24,
Santigalo |
| Ariel Viera | San Isidro
26-Apr-25,
Buenissimo Soy |
| Ariel Yllodo | San Isidro
11-Jan-24,
Danigen |
| Arizona Miller | Mahoning Valley
09-Jan-24,
Royal Coup |
| Arjun Mangalorkar | Chennai
01-Mar-25,
Disciple |
| Armand & Leon Lotz | |
| Armand Concessi | Fort Erie
15-Oct-24,
Thelonious |
| Armando Alamos | Sunray Park
17-May-26,
Apollitical Slates |