| 12/31/2018 | ||||||
 |
|
| M |
| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Ma, Tak-hing | RF | Trenton Stars | 35 | 11/13/1983 | Taipei | TPE | Left | Left | 6' 4" | 216 lbs | - |
| Macías, Armando | C | Free Agent | 33 | 05/20/1985 | Jenks | USA | Left | Right | 5' 11" | 198 lbs | - |
| Maddox, Bill | SP | Free Agent | 32 | 09/20/1986 | Galveston | USA | Right | Right | 6' 0" | 217 lbs | - |
| Maeda, Teinosuke | MR | Topeka Tornados | 30 | 08/19/1988 | Higashihiroshima | JPN | Right | Left | 6' 3" | 231 lbs | - |
| Maese, Pedro | C | Topeka Tornados | 34 | 06/28/1984 | Mexico City | MEX | Left | Right | 5' 11" | 202 lbs | - |
| Major, Ray | RF | Portland Privateers | 29 | 04/16/1989 | Fort Worth | USA | Left | Left | 5' 10" | 197 lbs | - |
| Malaret, Jonas | SP | Wisconsin Timber Rattlers | 27 | 07/21/1991 | Niterói | BRA | Switch | Right | 6' 6" | 225 lbs | - |
| Malone, Henry | MR | Tuscaloosa Trout Slayers | 31 | 04/21/1987 | Regina | CAN | Switch | Left | 6' 3" | 234 lbs | - |
| Manuel, Félix | 3B | Topeka Tornados | 32 | 01/28/1986 | The Bronx | USA | Right | Right | 6' 0" | 207 lbs | - |
| Márquez, Santiago | 3B | Detroit X-Wings | 21 | 05/30/1997 | San Juan | PUR | Left | Left | 6' 3" | 220 lbs | $6,500,000 |
| Marrero, Tony | MR | Wisconsin Timber Rattlers | 23 | 05/12/1995 | Managua | NCA | Right | Right | 5' 10" | 195 lbs | $400,000 |
| Martin, Carl | C | Topeka Tornados | 32 | 09/29/1986 | Chino Hills | USA | Left | Right | 5' 11" | 194 lbs | - |
| Martínez, António | SP | Topeka Tornados | 29 | 06/21/1989 | San Vicente | CRC | Right | Right | 6' 1" | 210 lbs | $1,000,000 |
| Martínez, Armando | 2B | Tuscaloosa Trout Slayers | 27 | 08/26/1991 | El Factor | DOM | Switch | Right | 5' 11" | 188 lbs | - |
| Martínez, Carlos | MR | Free Agent | 33 | 11/30/1985 | Managua | NCA | Right | Right | 6' 1" | 223 lbs | - |
| Martínez, Cristóbal | MR | Macon Bacon | 28 | 06/07/1990 | Camagüey | CUB | Right | Right | 6' 0" | 200 lbs | - |
| Martínez, Fernando | LF | Indiana Hounds | 24 | 02/27/1994 | Queens | USA | Right | Right | 6' 0" | 210 lbs | - |
| Martínez, José | 2B | Zanesville Gunslingers | 33 | 12/20/1985 | Santo Domingo | DOM | Right | Right | 6' 2" | 211 lbs | $4,000,000 |
| Martínez, José | 2B | Allentown Hillbillies | 24 | 02/13/1994 | Santo Domingo | DOM | Right | Right | 6' 2" | 168 lbs | - |
| Martínez, Juan | 2B | Detroit X-Wings | 30 | 12/01/1988 | Tepalcingo | MEX | Right | Right | 6' 2" | 200 lbs | - |
| Martínez, Lorenzo | RF | Wisconsin Timber Rattlers | 27 | 07/15/1991 | Bayamón | PUR | Right | Left | 5' 11" | 209 lbs | - |
| Martínez, Mario | CF | Charlotte Jackals | 26 | 08/14/1992 | San Marcos | USA | Right | Right | 6' 3" | 165 lbs | - |
| Martínez, Miguel | LF | Trenton Stars | 28 | 09/21/1990 | San Antonio | CHI | Right | Right | 6' 3" | 210 lbs | - |
| Martínez, Roberto | MR | Free Agent | 28 | 03/22/1990 | La Paz | BOL | Right | Right | 6' 1" | 217 lbs | - |
| Martínez, Santiago | 3B | Portland Privateers | 27 | 04/06/1991 | North Lauderdale | USA | Right | Right | 5' 8" | 188 lbs | - |
| Martínez, Sergio | SP | Tuscaloosa Trout Slayers | 22 | 04/16/1996 | San Juan | PUR | Switch | Right | 6' 1" | 235 lbs | - |
| Massé, Michel | RF | Free Agent | 32 | 09/12/1986 | Winnipeg | CAN | Right | Right | 6' 4" | 221 lbs | - |
| Mateo, Junior | MR | Tuscaloosa Trout Slayers | 23 | 05/08/1995 | La Cuesta | CRC | Right | Right | 6' 6" | 215 lbs | - |
| Matos, Arturo | MR | Cape Cod Clams | 29 | 11/16/1989 | Coronel | CHI | Right | Right | 6' 4" | 258 lbs | - |
| Matthews, Joe | MR | Portland Privateers | 30 | 09/21/1988 | Philadelphia | USA | Left | Left | 6' 2" | 216 lbs | - |
| McConnell, Tom | MR | Charlotte Jackals | 24 | 04/22/1994 | Davie | USA | Right | Right | 6' 5" | 220 lbs | - |
| McDaniel, Jim | CF | Otsego Bulldogs | 31 | 06/29/1987 | Dilley | USA | Right | Right | 6' 2" | 200 lbs | - |
| McKay, Ben | RF | Tuscaloosa Trout Slayers | 26 | 01/21/1992 | Montclair | USA | Right | Right | 6' 0" | 215 lbs | - |
| McKee, Tony | RF | Topeka Tornados | 33 | 05/10/1985 | Duvall | USA | Left | Left | 5' 11" | 217 lbs | - |
| McKee, Tyler | 2B | Cape Cod Clams | 28 | 06/05/1990 | Long Beach | USA | Left | Right | 5' 10" | 209 lbs | - |
| Medina, Félix | MR | Charlotte Jackals | 23 | 01/21/1995 | Lafayette | USA | Right | Right | 6' 4" | 220 lbs | - |
| Medina, Juan | SP | Allentown Hillbillies | 31 | 01/26/1987 | Santa Catarina | MEX | Left | Left | 6' 0" | 217 lbs | - |
| Méndez, Juan | SP | Allentown Hillbillies | 22 | 12/25/1996 | Santo Domingo | DOM | Left | Left | 6' 1" | 210 lbs | - |
| Méndez, Norberto | SP | Free Agent | 30 | 12/23/1988 | Massapequa | USA | Right | Right | 6' 2" | 235 lbs | - |
| Méndez, Ramón | SP | Detroit X-Wings | 33 | 11/14/1985 | Kansas City | USA | Right | Right | 6' 4" | 196 lbs | - |
| Mendoza, António | 3B | Wisconsin Timber Rattlers | 31 | 05/24/1987 | New York | USA | Switch | Right | 5' 10" | 218 lbs | - |
| Mendoza, César | SS | Otsego Bulldogs | 30 | 12/26/1988 | Soyapango | SLV | Right | Right | 6' 1" | 196 lbs | - |
| Mendoza, Gabriel | MR | Free Agent | 28 | 07/23/1990 | Wyandanch | USA | Left | Right | 5' 10" | 197 lbs | - |
| Mendoza, Juan | RF | Tuscaloosa Trout Slayers | 24 | 07/18/1994 | Cabudare | VEN | Right | Right | 6' 2" | 175 lbs | - |
| Metcalf, Nick | C | Portland Privateers | 25 | 06/26/1993 | Gilroy | USA | Right | Right | 6' 0" | 200 lbs | - |
| Mills, Kevin | 3B | Free Agent | 33 | 09/28/1985 | Addison | USA | Right | Right | 6' 1" | 195 lbs | - |
| Mitchell, Mike | CF | Cape Cod Clams | 24 | 06/11/1994 | Fort Wayne | USA | Left | Left | 6' 1" | 210 lbs | - |
| Mitchell, Oscar | MR | Macon Bacon | 24 | 09/09/1994 | Cerritos | USA | Right | Right | 5' 11" | 198 lbs | - |
| Mitenkov, Dema | SP | Detroit X-Wings | 23 | 03/02/1995 | Tartu | EST | Switch | Right | 6' 1" | 240 lbs | - |
| Mojica, José | MR | Free Agent | 33 | 10/02/1985 | Eagan | USA | Left | Right | 6' 5" | 199 lbs | - |
| Mok, Zhong-yan | LF | Topeka Tornados | 32 | 04/05/1986 | Panchiao | TPE | Right | Right | 6' 0" | 235 lbs | - |
| Mora, Manuel | RF | Topeka Tornados | 31 | 07/13/1987 | Mexico City | MEX | Right | Left | 6' 0" | 216 lbs | - |
| Morales, Jorge | LF | Detroit X-Wings | 24 | 01/11/1994 | Havana | CUB | Right | Right | 6' 2" | 210 lbs | - |
| Morán, Orlando | C | Detroit X-Wings | 31 | 11/25/1987 | Natick | USA | Right | Right | 6' 2" | 190 lbs | - |
| Moreno, Miguel | 2B | Detroit X-Wings | 22 | 07/08/1996 | Puerto Plata | DOM | Right | Right | 6' 0" | 175 lbs | - |
| Morín, Octávio | MR | Indiana Hounds | 26 | 12/08/1992 | Colorado Springs | USA | Right | Right | 5' 11" | 205 lbs | - |
| Morris, Brock | SP | Topeka Tornados | 23 | 03/28/1995 | El Paso | USA | Right | Left | 6' 3" | 220 lbs | - |
| Morris, Dave | 1B | Cape Cod Clams | 30 | 12/15/1988 | New York | USA | Right | Right | 5' 10" | 211 lbs | - |
| Mullins, Tom | 1B | Topeka Tornados | 19 | 01/22/1999 | Grand Rapids | USA | Left | Right | 6' 0" | 220 lbs | - |
| Muñíz, Raúl | 3B | Waba Ducks | 32 | 04/15/1986 | Yakima | USA | Right | Right | 6' 0" | 202 lbs | - |
| Muñóz, Fernando | RF | Zanesville Gunslingers | 20 | 02/13/1998 | Havana | CUB | Left | Left | 6' 3" | 180 lbs | - |
| Muñóz, Roberto | 1B | Charlotte Jackals | 28 | 10/03/1990 | Lagunillas | VEN | Right | Right | 6' 0" | 185 lbs | - |
| Murchison, Mark | CL | Detroit X-Wings | 23 | 06/16/1995 | Vancouver | CAN | Left | Left | 6' 2" | 220 lbs | - |
| Murcott, Alan | 3B | Otsego Bulldogs | 32 | 05/22/1986 | Rockfish | USA | Right | Right | 6' 0" | 210 lbs | - |
| Murillo, Mario | LF | Free Agent | 34 | 01/21/1984 | Puebla | MEX | Left | Left | 6' 3" | 195 lbs | - |
| Murphy, Clint | MR | Free Agent | 28 | 08/17/1990 | Avarua | COK | Left | Left | 6' 4" | 260 lbs | - |
| Mytton, Harry | MR | Topeka Tornados | 31 | 12/10/1987 | Bell | USA | Right | Right | 6' 3" | 218 lbs | - |
