| Robert W. Cook | Finger Lakes
25-Nov-25,
Eight Sunset Drive |
| Robert W. Leonard | Emerald Downs
22-Jun-26,
Desert Surprise |
| Robert W. Radcliffe | Churchill Downs
18-Jun-26,
Bullet Baby |
| Robert Warner | Fort Erie
14-Oct-24,
Yoga |
| Robert Werneth | Lone Star Park
11-May-26,
Better Day |
| Robert Widger | Kilbeggan
13-Jul-24,
Zhivotov |
| Robert Wilkins | Port Lincoln
13-Nov-16,
Swingin' Dazzler |
| Robert Wilkinson | Cartmel
30-May-24,
You Name Him |
| Robert Wilson | Assiniboia Downs
29-Aug-24,
Sparkle Dancer |
| Robert Witten | Pinjarra Scarpside
19-Jun-25,
Ceili |
| Robert Young | Lone Star Park
21-Jun-26,
Camp Evans |
| Roberta MacLeod | Geelong
26-Jan-26,
Bivtonic |
| Robertino Diodoro | Lone Star Park
21-Jun-26,
Unrivaled Hero |
| Roberto A Gomez | Palermo
12-Nov-23,
Take On |
| Roberto A Latorre | San Isidro
18-Jan-24,
Roberts Hit |
| Roberto Acosta | |
| Roberto Anglat | |
| Roberto Arrativel | San Isidro
03-Apr-25,
Hit Perugia |
| Roberto Bullrich | San Isidro
05-May-25,
Lancara |
| Roberto C Gutierrez | San Isidro
30-Nov-23,
Ya Li |
| Roberto C Guzman | Palermo
14-Nov-23,
Don Gaban |
| Roberto Cabrera | San Isidro
22-May-25,
Que Hechicera |
| Roberto Campos | San Isidro
30-Jan-25,
Quedate Cerca |
| Roberto Caroprese | San Isidro
13-Apr-25,
Emmspacial Boy |
| Roberto Castellano | San Isidro
26-Apr-25,
Linda Melodia |
| Roberto Consani | San Isidro
29-Dec-24,
Tiburon Beach |
| Roberto Da | Gavea
21-Jan-25,
Madame Salova |
| Roberto De Barrenechea | La Plata
21-Jun-23,
Quick Alpino |
| Roberto Desvard | San Isidro
08-Feb-24,
Copete Veloz |
| Roberto Duenes | Lone Star Park
26-Oct-25,
Dd Mr Bob |
| Roberto E Cabrera | San Isidro
30-Nov-23,
Idea Correcta |
| Roberto E Castellano | |
| Roberto E Sander | San Isidro
13-Mar-25,
Marburg |
| Roberto Fournier | Sunray Park
16-May-26,
Ms Ferrari Diablo |
| Roberto G. Madrigal | Lone Star Park
16-Nov-25,
La Tres Coronas |
| Roberto Gomez | San Isidro
01-May-25,
Shy Catalina |
| Roberto Gutierrez | San Isidro
13-Apr-25,
Trova Johan |
| Roberto J Pescatori | Palermo
07-Nov-23,
Sueno Hue |
| Roberto J Serjen | Palermo
31-Oct-22,
Comendatore Sky |
| Roberto J Zapata | San Isidro
29-Jul-23,
Vedette's Zamba |
| Roberto J. Rosado | Penn National
28-Aug-25,
Nitro Time |
| Roberto Landola | San Isidro
17-Apr-25,
Uruguaya Dt |
| Roberto Latorre | San Isidro
12-Sep-24,
Baraja Scat |
| Roberto Lopez | San Isidro
31-Aug-24,
Oscuro Diamante |
| Roberto M Isaurralde | San Isidro
11-Apr-24,
Don Balbo |
| Roberto M Landola | San Isidro
30-Nov-23,
Absenta |
| Roberto M M | Hipodromo Chile
11-May-25,
Cable A Tierra |
| Roberto Madrigal | Sam Houston Race Park
30-Apr-23,
Jess Dynasty |
| Roberto Meraz | Remington Park
29-Mar-26,
El Rajas Fire |
| Roberto Michelena | San Isidro
18-Jul-24,
Improved Wolf |
| Roberto Molla | San Isidro
15-May-25,
Wild Whishes |
| Roberto Mottura | San Isidro
31-Aug-24,
Super Friday |
| Roberto O Mottura | Palermo
27-Aug-23,
Maleza Salvaje |
| Roberto P Ruiz | Palermo
04-Nov-23,
Blooming Genius |
| Roberto Pellegatta | San Isidro
05-May-25,
Tooru |
| Roberto R Caroprese | Palermo
14-Nov-23,
Miss Safety |
| Roberto R Retamoso | Palermo
31-Oct-23,
El Zaguan |
| Roberto Retamoso | San Isidro
17-May-25,
Dicha Infinita |
| Roberto Rodriguez | San Isidro
03-May-25,
Taty Boone |
| Roberto Rosado | Philadelphia Park
22-Jul-24,
Secret Alliance |