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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Yamada, Takehide | MR | Free Agent | 27 | 10/06/1988 | Hadano | JPN | Left | Right | 6' 2" | 213 lbs | - |
| Yamaguchi, Yoritomo | RF | Frisco Rams | 22 | 11/24/1993 | Kawanishi | JPN | Left | Left | 6' 4" | 225 lbs | - |
| Yamaguchi, Yoshino | MR | New York Ninjas | 22 | 09/24/1993 | Kobe | JPN | Right | Right | 6' 3" | 220 lbs | - |
| Yamamoto, Isoruko | SP | Wichita Wolverines | 20 | 02/08/1995 | Toyohashi | JPN | Left | Right | 6' 8" | 255 lbs | - |
| Yamashita, Nobuhisa | SP | Carson City Mustang | 22 | 11/29/1993 | Yawata | JPN | Switch | Right | 6' 0" | 230 lbs | - |
| Yoder, Mack | 3B | Ottawa Outlaws | 21 | 11/25/1994 | Cuyahoga Falls | USA | Right | Right | 6' 2" | 190 lbs | - |
| Yoshioka, Tadaaki | LF | Newark Jail Birds | 22 | 02/13/1993 | Kawasaki | JPN | Left | Right | 6' 0" | 205 lbs | - |
| Young, Brian | SP | Free Agent | 28 | 04/11/1987 | Cortland | USA | Right | Right | 6' 1" | 187 lbs | - |
| Young, Jeremiah | CF | Newark Jail Birds | 23 | 11/17/1992 | Manhattan | USA | Right | Right | 6' 0" | 190 lbs | - |
| Young, Rob | SP | Rock River Rats | 22 | 08/02/1993 | Bronx | USA | Right | Right | 6' 4" | 215 lbs | - |
| Younger, Gregg | MR | Madison Beehive | 24 | 10/10/1991 | Naperville | USA | Right | Left | 6' 4" | 195 lbs | - |
| Yu, Chong-su | CF | Free Agent | 26 | 06/19/1989 | Koyang | KOR | Switch | Right | 5' 11" | 204 lbs | - |
