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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Rabelo, Salvador | C | Detroit X-Wings | 23 | 05/18/1995 | Santo Domingo | DOM | Right | Right | 6' 4" | 210 lbs | - |
| Ramírez, Jesús | SS | Wisconsin Timber Rattlers | 25 | 02/16/1993 | Panuco | MEX | Left | Right | 6' 1" | 220 lbs | - |
| Ramírez, Rafael | C | Allentown Hillbillies | 33 | 09/13/1985 | Zapopan | MEX | Right | Right | 6' 0" | 176 lbs | - |
| Ramírez, Ramón | 2B | Topeka Tornados | 31 | 05/02/1987 | Santo Domingo | DOM | Right | Right | 5' 11" | 193 lbs | - |
| Ramón, Víctor | MR | Free Agent | 30 | 05/14/1988 | Soyapango | SLV | Left | Left | 6' 4" | 252 lbs | - |
| Ramos, Pedro | C | Tuscaloosa Trout Slayers | 26 | 02/18/1992 | Salisbury | USA | Right | Right | 6' 2" | 230 lbs | - |
| Randín, Ramón | 2B | Free Agent | 35 | 06/03/1983 | Soyapango | SLV | Switch | Right | 6' 2" | 214 lbs | - |
| Rangel, Jorge | SS | Free Agent | 34 | 12/02/1984 | Charlotte | USA | Right | Right | 5' 11" | 189 lbs | - |
| Reader, Mike | MR | Trenton Stars | 30 | 06/26/1988 | Pine Ridge | USA | Switch | Right | 6' 6" | 201 lbs | - |
| Reed, Derrek | MR | Portland Privateers | 33 | 09/24/1985 | Tallahassee | USA | Left | Left | 6' 0" | 201 lbs | - |
| Reeves, Lee | 1B | Macon Bacon | 25 | 05/10/1993 | Battle Ground | USA | Left | Left | 6' 0" | 210 lbs | - |
| Reyes, Víctor | CL | Macon Bacon | 23 | 12/24/1995 | Havana | CUB | Left | Right | 6' 5" | 210 lbs | - |
| Riley, Mark | MR | Wisconsin Timber Rattlers | 28 | 08/21/1990 | Winchendon | USA | Right | Right | 6' 3" | 230 lbs | - |
| Ríos, Carlos | 2B | Indiana Hounds | 23 | 07/08/1995 | Morelia | MEX | Left | Right | 5' 11" | 145 lbs | - |
| Ríos, Manuel | 3B | Otsego Bulldogs | 27 | 11/20/1991 | Moreno Valley | USA | Right | Right | 6' 3" | 210 lbs | - |
| Rivas, Manny | SS | Free Agent | 33 | 02/14/1985 | Madruga | CUB | Right | Right | 6' 3" | 218 lbs | - |
| Rivas, Pablo | RF | Detroit X-Wings | 24 | 10/28/1994 | Santo Domingo | DOM | Left | Left | 6' 0" | 195 lbs | - |
| Rivera, Felipe | RF | Otsego Bulldogs | 23 | 08/04/1995 | Fajardo | PUR | Right | Right | 6' 1" | 210 lbs | - |
| Rivera, Félix | MR | Indiana Hounds | 27 | 04/16/1991 | Mulchén | CHI | Right | Right | 6' 1" | 202 lbs | - |
| Rivera, Jesús | LF | Wisconsin Timber Rattlers | 24 | 03/11/1994 | Green Hill | USA | Switch | Right | 6' 0" | 220 lbs | - |
| Rivera, Víctor | SP | Tuscaloosa Trout Slayers | 21 | 09/26/1997 | Maracaibo | VEN | Right | Right | 5' 11" | 245 lbs | - |
| Robert, Daniel | 1B | Trenton Stars | 22 | 02/09/1996 | Montreal | CAN | Right | Right | 6' 0" | 215 lbs | - |
| Roberts, Brandon | SP | Topeka Tornados | 24 | 10/07/1994 | Panorama Village | USA | Right | Right | 6' 7" | 230 lbs | - |
| Robinson, Joe | MR | Free Agent | 28 | 05/06/1990 | Boscobel | USA | Left | Left | 6' 1" | 210 lbs | - |
| Robinson, Quincy | SP | Zanesville Gunslingers | 33 | 03/07/1985 | South San Francisco | USA | Left | Left | 6' 3" | 233 lbs | - |
| Rodgers, Dave | MR | Allentown Hillbillies | 29 | 05/02/1989 | Borger | USA | Right | Right | 6' 2" | 228 lbs | - |
| Rodríguez, Alfonso | CL | Topeka Tornados | 23 | 06/24/1995 | Mexico City | MEX | Right | Right | 5' 11" | 200 lbs | - |
| Rodríguez, Ángel | MR | Trenton Stars | 30 | 05/11/1988 | Charlotte | USA | Right | Right | 6' 3" | 193 lbs | - |
| Rodríguez, Héctor | 2B | Free Agent | 31 | 09/01/1987 | Havana | CUB | Right | Right | 6' 0" | 210 lbs | - |
| Rodríguez, Jorge | C | Charlotte Jackals | 26 | 04/11/1992 | Concord | USA | Right | Right | 6' 0" | 190 lbs | - |
| Rodríguez, Juan | RF | Wisconsin Timber Rattlers | 29 | 08/07/1989 | Havana | CUB | Left | Left | 5' 10" | 181 lbs | - |
| Rodríguez, Manuel | SP | Portland Privateers | 23 | 04/04/1995 | Coronel | CHI | Left | Left | 5' 11" | 230 lbs | - |
| Rodríguez, Miguel | CF | Topeka Tornados | 29 | 02/07/1989 | Oak Lawn | USA | Switch | Right | 6' 2" | 178 lbs | - |
| Rodríguez, Paco | 1B | Zanesville Gunslingers | 28 | 08/19/1990 | Boston | USA | Right | Right | 6' 2" | 207 lbs | - |
| Rodríguez, Sergio | RF | Free Agent | 31 | 06/24/1987 | Santiago | DOM | Right | Right | 5' 11" | 210 lbs | - |
| Rojas, Ángel | 1B | Wisconsin Timber Rattlers | 34 | 03/31/1984 | Kansas City | USA | Right | Right | 6' 3" | 204 lbs | - |
| Rojas, Rubén | MR | Portland Privateers | 23 | 08/07/1995 | Ahuachapan | SLV | Left | Left | 5' 10" | 232 lbs | - |
| Romano, Emílio | MR | Topeka Tornados | 30 | 09/03/1988 | Roseville | USA | Left | Right | 5' 11" | 196 lbs | - |
| Romero, Manny | 1B | Free Agent | 31 | 06/18/1987 | Guaynabo | PUR | Right | Right | 6' 0" | 206 lbs | - |
| Romo, Bartolo | SP | Waba Ducks | 25 | 01/28/1993 | San Antonio | USA | Right | Right | 6' 2" | 225 lbs | - |
| Rosário, Enrique | C | Free Agent | 32 | 06/01/1986 | Bayamón | PUR | Right | Right | 6' 0" | 214 lbs | - |
| Ruíz, Alfredo | MR | Macon Bacon | 24 | 12/22/1994 | Tonala | MEX | Right | Right | 6' 3" | 255 lbs | - |
| Ruíz, Ramón | SP | Tuscaloosa Trout Slayers | 22 | 06/26/1996 | Limón | CRC | Switch | Left | 6' 3" | 260 lbs | - |
| Rutledge, Todd | 1B | Wisconsin Timber Rattlers | 32 | 06/27/1986 | Alhambra | USA | Switch | Right | 5' 10" | 194 lbs | - |
