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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Raffles, Stan | RF | St. John Stingrays | 25 | 06/27/1990 | Queens | USA | Left | Left | 6' 1" | 190 lbs | - |
| Ramírez, António | LF | Springfield Reformers | 26 | 06/22/1989 | San Juan | PUR | Right | Right | 5' 9" | 180 lbs | - |
| Ramírez, Claudio | SP | Free Agent | 25 | 04/22/1990 | Warner Robins | USA | Right | Right | 6' 4" | 212 lbs | - |
| Ramírez, Fernando | 3B | Antioch Coal Miners | 29 | 09/13/1986 | Houston | USA | Switch | Right | 6' 1" | 188 lbs | - |
| Ramírez, Jesús | SP | Astoria Argonauts | 22 | 11/04/1993 | Flossmoor | USA | Switch | Right | 6' 0" | 205 lbs | - |
| Ramírez, José | SP | Joplin Fireballs | 27 | 07/15/1988 | Dartmouth | USA | Left | Left | 6' 4" | 211 lbs | $800,000 |
| Ramírez, Ramón | 1B | Free Agent | 25 | 06/26/1990 | Ponce | PUR | Right | Right | 6' 1" | 200 lbs | - |
| Ramírez, Ricardo | 3B | El Paso Diablos | 25 | 06/02/1990 | Boonsboro | USA | Right | Right | 6' 1" | 190 lbs | - |
| Ramsey, Larry | MR | Fort Worth Cats | 28 | 02/14/1987 | Wyandanch | USA | Right | Left | 6' 0" | 200 lbs | - |
| Ramsour, Peter | C | Leningrad Communists | 22 | 01/12/1993 | Joplin | USA | Right | Right | 6' 4" | 205 lbs | - |
| Randolph, Thurman | 2B | Reno Raiders | 26 | 07/20/1989 | Randolph | USA | Right | Right | 5' 8" | 195 lbs | - |
| Rankin, Jason | SP | Fort Worth Cats | 21 | 02/28/1994 | Barrie | CAN | Right | Right | 6' 0" | 210 lbs | - |
| Ratzlaff, Johnny | SP | Detroit Death Stars | 27 | 07/17/1988 | Geary | USA | Left | Left | 6' 0" | 175 lbs | - |
| Reddin, Paul | CF | Bristol City Smugglers | 21 | 02/03/1994 | London | CAN | Right | Right | 6' 1" | 200 lbs | - |
| Reid, Mark | LF | Albuquerque Cacti | 27 | 07/11/1988 | Bonadelle Ranchos-Madera Ranchos | USA | Right | Right | 6' 0" | 197 lbs | - |
| Reyes, Alberto | LF | Springfield Reformers | 23 | 11/24/1992 | Santo Domingo | DOM | Left | Left | 5' 8" | 175 lbs | - |
| Reyes, Héctor | SP | Albuquerque Cacti | 28 | 11/30/1987 | Chicago | USA | Left | Left | 6' 2" | 210 lbs | - |
| Reyes, Javier | 1B | Bristol City Smugglers | 22 | 05/30/1993 | Ponce | PUR | Left | Left | 6' 0" | 250 lbs | - |
| Reynoso, Leonardo | SP | Indian Wells Aeropostales | 20 | 02/07/1995 | Las Tunas | CUB | Right | Right | 6' 2" | 200 lbs | - |
| Rice, Eric | 2B | Astoria Argonauts | 23 | 10/15/1992 | Dumas | USA | Right | Right | 6' 1" | 190 lbs | - |
| Richardson, Henry | SS | Indian Wells Aeropostales | 25 | 08/08/1990 | Chantilly | USA | Right | Right | 6' 1" | 190 lbs | $500,000 |
| Rin, Shintaro | LF | Bronx Bombers | 20 | 05/16/1995 | Matsudo | JPN | Left | Left | 5' 11" | 205 lbs | - |
| Ríos, Miguel | 3B | Leningrad Communists | 21 | 05/06/1994 | Santo Domingo | DOM | Right | Right | 6' 0" | 220 lbs | - |
| Ríos, Sergio | LF | Astoria Argonauts | 22 | 10/17/1993 | Orlando | USA | Left | Right | 6' 1" | 210 lbs | - |
| Rivera, Jorge | RF | Joplin Fireballs | 28 | 12/24/1987 | Harris | USA | Left | Left | 5' 9" | 179 lbs | - |
| Rivera, José | LF | Free Agent | 26 | 02/09/1989 | Centralia | USA | Left | Left | 6' 2" | 205 lbs | - |
| Rivera, José | SP | Detroit Death Stars | 27 | 11/02/1988 | Villa Fundación | DOM | Switch | Right | 6' 3" | 212 lbs | - |
| Rivero, Jorge | MR | Springfield Reformers | 28 | 12/02/1987 | East Ridge | USA | Switch | Right | 6' 2" | 190 lbs | - |
| Robertson, Jim | CF | Mdewanketon Sabercats | 26 | 03/27/1989 | Toledo | USA | Left | Right | 5' 11" | 205 lbs | - |
| Robertson, John | C | Free Agent | 35 | 05/05/1980 | Gateway | USA | Right | Right | 6' 0" | 172 lbs | - |
| Robertson, Nick | C | Bristol City Smugglers | 23 | 04/01/1992 | Mississauga | CAN | Right | Right | 6' 0" | 200 lbs | - |
| Rocha, Luis | LF | Leningrad Communists | 32 | 04/18/1983 | Moroleón | MEX | Right | Right | 6' 0" | 186 lbs | - |
| Rodrigues, Nicolas | MR | Bristol City Smugglers | 23 | 05/19/1992 | Brampton | CAN | Right | Right | 6' 2" | 235 lbs | - |
| Rodríguez, Carlos | CF | Antioch Coal Miners | 26 | 09/16/1989 | Winston-Salem | USA | Right | Right | 6' 3" | 200 lbs | - |
| Rodríguez, Fernando | SP | Astoria Argonauts | 24 | 09/30/1991 | Tacarigua | VEN | Right | Right | 6' 2" | 200 lbs | - |
| Rodríguez, Jorge | C | Detroit Death Stars | 29 | 06/30/1986 | Sunrise Manor | USA | Right | Right | 6' 1" | 187 lbs | - |
| Rodríguez, Júlio | RF | Minneapolis Freeze | 24 | 10/28/1991 | Chicago | USA | Left | Left | 6' 0" | 215 lbs | - |
| Rodríguez, Raúl | 3B | Free Agent | 30 | 03/06/1985 | Santo Domingo | DOM | Right | Right | 6' 0" | 200 lbs | - |
| Rogers, Ben | LF | Fort Worth Cats | 24 | 09/01/1991 | Millington | USA | Left | Left | 5' 8" | 170 lbs | - |
| Rogers, Dan | MR | Reno Raiders | 29 | 10/14/1986 | Rohnert Park | USA | Left | Left | 6' 2" | 228 lbs | - |
| Rogers, Michael | 2B | Bronx Bombers | 27 | 01/18/1988 | Nashua | USA | Right | Right | 5' 9" | 201 lbs | - |
| Rogers, Todd | SP | Billings Mustangs | 26 | 08/28/1989 | Louisburg | USA | Right | Right | 6' 5" | 208 lbs | - |
| Rosales, Jesús | SS | Philadelphia Freedom | 22 | 10/25/1993 | Mexico City | MEX | Right | Right | 5' 9" | 210 lbs | - |
| Ross, John | CF | Free Agent | 29 | 05/11/1986 | Bagdad | USA | Left | Left | 6' 2" | 157 lbs | - |
| Rouse, Bruce | 3B | Free Agent | 28 | 10/14/1987 | Santa Fe | USA | Right | Right | 6' 0" | 220 lbs | - |
| Rúbio, Carlos | SP | Fort Worth Cats | 20 | 09/10/1995 | Santo Domingo | DOM | Left | Left | 5' 10" | 220 lbs | - |
| Ruíz, Domingo | MR | St. John Stingrays | 22 | 10/11/1993 | Greece | USA | Left | Right | 6' 0" | 225 lbs | - |
| Rush, Glen | CL | Joplin Fireballs | 24 | 08/21/1991 | Vancouver | USA | Switch | Right | 6' 1" | 212 lbs | - |
| Russell, Bill | SP | Albuquerque Cacti | 25 | 08/21/1990 | Watauga | USA | Switch | Right | 6' 3" | 230 lbs | - |
| Russell, Billy | MR | Acapulco Banditos | 24 | 11/03/1991 | Lincoln | USA | Switch | Right | 5' 11" | 220 lbs | - |
