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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Ramírez, Enrique | 2B | Buffalo LightSabres | 25 | 05/28/1993 | Santo Domingo | DOM | Right | Right | 5' 10" | 205 lbs | - |
| Ramírez, Jesús | SP | Lima Oilers | 23 | 04/11/1995 | Mexico City | MEX | Left | Left | 6' 3" | 245 lbs | - |
| Ramírez, José | SP | Springfield Simpsons | 26 | 07/10/1992 | San Juan | PUR | Switch | Right | 6' 0" | 220 lbs | - |
| Ramírez, Valentín | C | Springfield Simpsons | 21 | 08/30/1997 | Río Grande | PUR | Right | Right | 6' 1" | 190 lbs | - |
| Ramos, Júlio | RF | Springfield Simpsons | 25 | 10/01/1993 | Havana | CUB | Switch | Left | 6' 3" | 225 lbs | - |
| Ray, Jack | 2B | Wilmington Rebels | 22 | 01/23/1996 | Sugar Land | USA | Right | Right | 6' 1" | 190 lbs | - |
| Revélez, Arturo | MR | Free Agent | 30 | 09/09/1988 | Chihuahua | MEX | Left | Left | 6' 1" | 195 lbs | - |
| Reyes, Andrés | LF | Springfield Simpsons | 25 | 05/17/1993 | Athens-Clarke | USA | Right | Right | 6' 0" | 225 lbs | - |
| Reyes, Francisco | LF | Lima Oilers | 24 | 11/18/1994 | Constanza | DOM | Right | Right | 5' 8" | 170 lbs | - |
| Richards, Mark | CF | Springfield Simpsons | 26 | 12/16/1992 | Plainview | USA | Left | Right | 6' 0" | 195 lbs | - |
| Richardson, Steve | LF | Free Agent | 31 | 07/06/1987 | Westminster | USA | Left | Left | 5' 11" | 170 lbs | - |
| Rincón, Manny | LF | Lima Oilers | 24 | 03/02/1994 | Santo Domingo | DOM | Right | Right | 5' 11" | 204 lbs | - |
| Rivera, Claudio | MR | Springfield Simpsons | 24 | 06/28/1994 | Milpitas | USA | Right | Right | 5' 11" | 235 lbs | - |
| Rivera, Felipe | MR | Springfield Simpsons | 24 | 09/09/1994 | Gloucester | USA | Right | Left | 6' 0" | 240 lbs | - |
| Rivera, José | 3B | Reading Rainbows | 22 | 02/01/1996 | Candelaria | PUR | Switch | Right | 5' 11" | 205 lbs | - |
| Roberts, Jonathan | 3B | Reading Rainbows | 23 | 10/05/1995 | Tallahassee | USA | Right | Right | 6' 2" | 150 lbs | - |
| Rodríguez, José | LF | Butler White Sox | 24 | 11/04/1994 | Santo Domingo | DOM | Right | Right | 5' 11" | 190 lbs | - |
| Rodríguez, Lorenzo | 2B | Mt Pleasant Bearcats | 33 | 07/26/1985 | Río Grande | PUR | Switch | Right | 6' 0" | 197 lbs | - |
| Rodríguez, Miguel | SP | Butler White Sox | 29 | 03/13/1989 | Monclova | MEX | Right | Right | 6' 0" | 218 lbs | - |
| Rodríguez, Salvador | MR | Mt Pleasant Bearcats | 24 | 09/04/1994 | Middletown | USA | Left | Left | 6' 3" | 220 lbs | - |
| Román, Claudio | C | Lima Oilers | 33 | 12/13/1985 | North Las Vegas | USA | Right | Right | 6' 4" | 233 lbs | - |
| Romero, António | MR | Free Agent | 27 | 02/11/1991 | San Salvador | SLV | Switch | Right | 6' 3" | 215 lbs | - |
| Romero, Víctor | LF | Free Agent | 31 | 06/25/1987 | San Cristóbal | CUB | Right | Left | 6' 3" | 153 lbs | - |
| Rosado, Álex | LF | Newark Bulldogs | 23 | 12/17/1995 | Caracas | VEN | Switch | Right | 5' 9" | 185 lbs | - |
| Ruby, Nick | MR | Reading Rainbows | 29 | 11/12/1989 | Walbridge | USA | Right | Right | 6' 4" | 228 lbs | - |
| Ruíz, Alfonso | 3B | Reading Rainbows | 19 | 07/29/1999 | San Vicente | CRC | Left | Right | 6' 2" | 165 lbs | - |
| Ruíz, Carlos | SP | Wilmington Rebels | 20 | 09/21/1998 | Guadalupe | MEX | Right | Right | 5' 9" | 215 lbs | - |
| Russell, Monty | SP | Mt Pleasant Bearcats | 23 | 04/22/1995 | Kenai | USA | Right | Right | 6' 1" | 205 lbs | - |
