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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Ramírez, Gabriel | MR | Surrey Sinners | 24 | 12/01/1994 | Vineland | USA | Right | Right | 5' 10" | 200 lbs | - |
| Ramírez, Júlio | LF | Salem Sledgehammers | 24 | 09/10/1994 | Lima | USA | Right | Right | 5' 11" | 180 lbs | - |
| Ramírez, Salvador | SP | Salem Sledgehammers | 23 | 07/03/1995 | Constanza | DOM | Switch | Right | 6' 2" | 255 lbs | - |
| Ramos, David | MR | Salem Sledgehammers | 25 | 11/01/1993 | Sacramento | USA | Right | Right | 6' 2" | 220 lbs | - |
| Ray, Dalton | MR | Lloydminster Lynx | 21 | 10/02/1997 | Clifton | USA | Right | Right | 6' 0" | 205 lbs | - |
| Reed, Douggie | RF | Saskatoon Smokin' Guns | 23 | 08/27/1995 | Oranjestad | ARU | Left | Right | 6' 0" | 180 lbs | - |
| Reid, Jerry | MR | Salem Sledgehammers | 22 | 07/04/1996 | White Plains | USA | Right | Right | 5' 11" | 215 lbs | - |
| Reyes, Eduardo | MR | Free Agent | 28 | 10/13/1990 | Lewisburg | USA | Switch | Right | 6' 0" | 185 lbs | - |
| Richardson, Dave | SP | Seattle Rainiers | 29 | 06/05/1989 | Eagar | USA | Right | Right | 6' 3" | 202 lbs | - |
| Roa, Vincente | MR | Surrey Sinners | 23 | 06/06/1995 | Montesano | USA | Left | Left | 6' 2" | 240 lbs | - |
| Robles, José | MR | Saskatoon Smokin' Guns | 30 | 10/25/1988 | Moca | DOM | Left | Right | 6' 2" | 188 lbs | - |
| Rodríguez, Dani | SS | Seattle Rainiers | 22 | 11/03/1996 | Barquisimeto | VEN | Right | Right | 5' 11" | 190 lbs | - |
| Rodríguez, Francisco | SS | Surrey Sinners | 19 | 08/22/1999 | Havana | CUB | Right | Right | 6' 0" | 180 lbs | - |
| Rodríguez, Miguel | 3B | Seattle Rainiers | 20 | 05/13/1998 | Fremont | USA | Right | Right | 6' 3" | 190 lbs | - |
| Roe, Josh | MR | Seattle Rainiers | 22 | 04/22/1996 | Apple Valley | USA | Left | Left | 6' 1" | 215 lbs | - |
| Rosário, Jason | MR | Free Agent | 27 | 01/05/1991 | North Highlands | USA | Right | Right | 6' 0" | 228 lbs | - |
| Rosário, Juan | CF | Jasper Cougars | 23 | 10/01/1995 | Bowling Green | USA | Right | Right | 6' 1" | 185 lbs | - |
| Rouse, Jack | LF | Jasper Cougars | 22 | 05/24/1996 | Hayward | USA | Left | Right | 6' 3" | 200 lbs | - |
| Rudd, Oscar | CF | Surrey Sinners | 22 | 02/07/1996 | Quincy | USA | Right | Right | 5' 10" | 180 lbs | - |
