| Relentless Mountain | Remington Park,
23-Mar-26 |
| Relentless Moves | Remington Park,
03-Apr-26 |
| Relentless Okie | Canterbury Park,
17-Aug-23 |
| Relentless Phox | Remington Park,
12-Apr-26 |
| Relentless Pressure | Sunland Park,
12-Feb-24 |
| Relentless Prince | Remington Park,
11-Apr-26 |
| Relentless Prize Mrb | |
| Relentless Purrsuit | Will Rogers Downs,
12-Nov-25 |
| Relentless Raider | Gulfstream,
27-Jul-25 |
| Relentless Rain | Remington Park,
13-Apr-26 |
| Relentless Reba | Horseshoe Indianapolis,
17-Sep-25 |
| Relentless Robin | Canterbury Park,
16-Aug-24 |
| Relentless Rocker S | Remington Park,
25-Apr-26 |
| Relentless Rocket | Remington Park,
26-Apr-26 |
| Relentless Rose Z | Remington Park,
21-Mar-26 |
| Relentless Runner | Sunland Park,
06-Jan-25 |
| Relentless Ruth | Remington Park,
25-Apr-26 |
| Relentless Sam | Remington Park,
27-Mar-26 |
| Relentless Silk | Lone Star Park,
01-Nov-25 |
| Relentless Sonny D | |
| Relentless Summer | Remington Park,
29-Mar-26 |
| Relentless Suze | Remington Park,
13-Apr-25 |
| Relentless Tithing | |
| Relentless Trick Db | Turf Paradise,
10-Feb-26 |
| Relentless Wine | Remington Park,
05-Apr-26 |
| Relentless Zoom | Remington Park,
12-Apr-26 |
| Relentlesscharger | Sunray Park,
18-Apr-26 |
| Relentlessly Fast | Will Rogers Downs,
20-Oct-25 |
| Relentlessly H | Remington Park,
19-Apr-26 |
| Relentlessly Special | Horseshoe Indianapolis,
19-Sep-25 |
| Relentlessly Sweet | Canterbury Park,
25-Jul-24 |
| Relentlesss Lady | Remington Park,
30-Mar-26 |
| Relevance | Gulfstream,
21-Dec-25 |
| Relevate | Oaklawn Park,
24-Apr-26 |
| Reliability | Woodbine,
29-Sep-23 |
| Reliable Lady | Aqueduct,
18-Apr-26 |
| Reliable Source | Zia Park,
27-Nov-24 |
| Relish The Ride | Thistledown,
23-Apr-26 |
| Relishment | Penn National,
17-Aug-24 |
| Relli's Cruiser | Aqueduct,
04-Apr-26 |
| Reload Bullet | Fort Erie,
10-Sep-24 |
| Reload's Rascal | Woodbine,
30-Jun-24 |
| Reload's Rebel | Woodbine,
03-Sep-24 |
| Reloaded And Red D | Remington Park,
25-May-25 |
| Reluctant | Golden Gate Fields,
30-Dec-22 |
| Remain Anonymous | Aqueduct,
20-Apr-24 |
| Remaining Nameless | Prairie Meadows,
09-Aug-25 |
| Remarkable Charm | Fonner Park,
13-Apr-24 |
| Remarkable Cowgirl | Lone Star Park,
14-Sep-25 |
| Remarkable Mo | Delaware Park,
05-Oct-25 |
| Remastered | Charles Town,
12-Jan-24 |
| Rematch | Kentucky Downs,
08-Sep-24 |
| Rembering Mac | Zia Park,
12-Nov-23 |
| Remember | Bunbury,
22-Dec-13 |
| Remember | Gulfstream,
05-Dec-25 |
| Remember April | Santa Anita,
18-Jan-26 |
| Remember Big Jim | Lone Star Park,
20-Apr-26 |
| Remember Da Queen | Horseshoe Indianapolis,
05-Oct-25 |
| Remember Diamond | Lone Star Park,
07-Nov-25 |
| Remember First | Sunland Park,
22-Jan-24 |