| Gregory Sacco | Finger Lakes
20-May-25,
Kitty Hawk |
| Gregory Seabrook | Beaudesert
15-Mar-15,
Whydothistome |
| Gregory Smith | Barraba
21-Sep-24,
River Mac |
| Gregory Viands | Charles Town
13-Dec-25,
Arditamente |
| Gregory Webb | Stony Creek
15-Feb-26,
Redabout |
| Gregory Wilson | Laurel Park
28-Apr-25,
Nearly A Lady |
| Gu Sung | Busan
18-May-25,
Maria's Call |
| Guadalupe J. Mata | |
| Guadalupe Munoz Jr | Sunland Park
31-Mar-24,
Flash Me The Price |
| Guadalupe Preciado | Gulfstream
02-Mar-26,
Ad Majora |
| Gualberto Aguinaco | Palermo
29-Oct-23,
Ree Justa |
| Guber Gorostieta | Turfway Park
01-Mar-26,
Put Me In Coach |
| Guido L Villanueva | Palermo
19-Aug-23,
Cretino Y Expresivo |
| Guido Villanueva | San Isidro
22-May-25,
Claro Boy |
| Guillemin (s) | Toulouse
02-Mar-26,
Mossana |
| Guillermo A | Hipodromo Chile
09-May-25,
Norte Risueno |
| Guillermo Ahihi | San Isidro
26-Apr-25,
Ke Wellito Gol |
| Guillermo Arrizabalaga | San Isidro
30-May-24,
Mex Joy |
| Guillermo Baglietto | San Isidro
15-Sep-24,
Amor Del Bueno |
| Guillermo C | Valparaiso Sporting Club
15-May-25,
Gran Gallega |
| Guillermo Cuesta | Palermo
14-Nov-23,
Amiguita Boce |
| Guillermo De | San Isidro
08-May-25,
Amiguitamilonguerita |
| Guillermo Escudero | Palermo
07-Oct-23,
More Than Words |
| Guillermo Flores | Will Rogers Downs
25-Feb-26,
Da Chief |
| Guillermo Frenkel | San Isidro
28-Apr-25,
Espada Y Oro |
| Guillermo Gallay | San Isidro
27-Feb-25,
Lucky Gentelman |
| Guillermo Garcia | San Isidro
22-May-25,
Corsico |
| Guillermo Martinez | San Isidro
10-Jun-23,
Reglas Reales |
| Guillermo Morales | Turf Paradise
12-Dec-25,
Chase This King |
| Guillermo Morales, Jr. | Tampa Bay Downs
23-Feb-26,
My Satisfaction |
| Guillermo Naranjo | San Isidro
01-Jun-23,
Primavera Candy |
| Guillermo Nunez | Palermo
13-Aug-23,
Buen Atrayente |
| Guillermo P | Club Hipico Santiago
11-Jan-25,
Halime |
| Guillermo Peralta | Club Hipico Santiago
17-May-25,
William Faulkner |
| Guillermo Perez | San Isidro
17-Aug-24,
Skurlin |
| Guillermo Preciado | Turf Paradise
01-Mar-26,
Mamarando |
| Guillermo Santacruz | San Isidro
09-May-24,
Buen Inc |
| Guillermo Santillan | San Isidro
16-Nov-23,
La Merkel |
| Guillermo Valdivia | Will Rogers Downs
12-Nov-25,
Pyc Fancy Wagon |
| Guillermo Yeffal | San Isidro
16-Nov-24,
Full Texana |
| Guntis Lukss | Goulburn
27-Feb-26,
Son O' War |
| Gurtej Uppal | Gold Coast
19-Sep-15,
How Lucky We Are |
| Gus Headley | Santa Anita
23-Feb-26,
Miss Meagher |
| Gus Philpot | bet365 Park Kilmore
12-Dec-16,
Alert Status |
| Gustavo A Alvarez | Palermo
27-Jun-23,
Susy Way |
| Gustavo A Rodriguez | Palermo
21-Oct-23,
Esha |
| Gustavo A Sereno | Palermo
27-Jun-23,
Abanillera |
| Gustavo Almanza | Horseshoe Indianapolis
27-Oct-23,
Tuff Secret |
| Gustavo Alza | San Isidro
07-Sep-24,
Malo Tu |
| Gustavo Amaya | Tampa Bay Downs
02-Mar-26,
Loyal Clement |
| Gustavo Anconetani | San Isidro
10-Apr-25,
Indio Agresor |
| Gustavo Aon | San Isidro
24-Apr-25,
Le Prestige |
| Gustavo Barragan | San Isidro
17-Apr-25,
Chau Mariu |
| Gustavo Calleja | Turfway Park
12-Dec-25,
El Cordobes |
| Gustavo Chacon | Penn National
08-Aug-25,
Tap The Devil |
| Gustavo Conti | San Isidro
08-May-25,
Googler |
| Gustavo De | San Isidro
17-May-25,
Favorite Song Way |
| Gustavo Delgado | Gulfstream
27-Feb-26,
Commendatore |
| Gustavo E Scarpello | San Isidro
13-Mar-25,
Maiza Moi |
| Gustavo Esquivel | Turfway Park
22-Feb-26,
She's No Angel |