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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Yamada, Tetsu | CF | Newark Jail Birds | 23 | 02/13/1993 | Amagasaki | JPN | Right | Left | 6' 1" | 190 lbs | - |
| Yamaguchi, Jiro | 2B | Asheville Tourists | 23 | 04/20/1993 | Wakuya | JPN | Right | Right | 5' 9" | 180 lbs | - |
| Yamaguchi, Yoritomo | RF | Frisco Rams | 23 | 11/24/1993 | Kawanishi | JPN | Left | Left | 6' 4" | 225 lbs | - |
| Yamaguchi, Yoshino | MR | New York Ninjas | 23 | 09/24/1993 | Kobe | JPN | Right | Right | 6' 3" | 220 lbs | - |
| Yamamoto, Isoruko | SP | Wichita Wolverines | 21 | 02/08/1995 | Toyohashi | JPN | Left | Right | 6' 8" | 255 lbs | - |
| Yamamoto, Kazuyuki | SP | Lake of the Isles Wolves | 20 | 05/03/1996 | Hino | JPN | Right | Right | 6' 2" | 255 lbs | - |
| Yamamoto, Terumoto | SP | Newark Jail Birds | 23 | 12/16/1993 | Izumi | JPN | Left | Left | 5' 8" | 220 lbs | - |
| Yamauchi, Norihisa | CF | Phoenix Lights | 24 | 06/13/1992 | Nagoya | JPN | Right | Right | 5' 11" | 185 lbs | - |
| Yates, Eric | MR | Free Agent | 29 | 11/14/1987 | Hopkinton | USA | Right | Right | 6' 1" | 185 lbs | - |
| Yildizoglu, Tulon | SP | Lake of the Isles Wolves | 23 | 09/10/1993 | Farmington Hills | USA | Right | Left | 5' 10" | 215 lbs | - |
| Yoder, Mack | 3B | Ottawa Outlaws | 22 | 11/25/1994 | Cuyahoga Falls | USA | Right | Right | 6' 2" | 190 lbs | - |
| Yoshida, Noburo | SP | Silicon Valley Hackers | 18 | 03/17/1998 | Iruma | JPN | Right | Right | 6' 0" | 190 lbs | - |
| Yoshida, Shihi | 1B | Spokane Bulldogs | 21 | 07/23/1995 | Oyama | JPN | Right | Right | 6' 4" | 195 lbs | - |
| Yoshioka, Tadaaki | LF | Newark Jail Birds | 23 | 02/13/1993 | Kawasaki | JPN | Left | Right | 6' 0" | 205 lbs | - |
| Young, Ánibal | RF | Lake of the Isles Wolves | 23 | 06/18/1993 | Cedar Lake | USA | Right | Right | 6' 0" | 195 lbs | - |
| Young, Brian | SP | Free Agent | 29 | 04/11/1987 | Cortland | USA | Right | Right | 6' 1" | 187 lbs | - |
| Young, Jeremiah | CF | Newark Jail Birds | 24 | 11/17/1992 | Manhattan | USA | Right | Right | 6' 0" | 190 lbs | - |
| Young, Rob | SP | Rock River Rats | 23 | 08/02/1993 | Bronx | USA | Right | Right | 6' 4" | 215 lbs | - |
| Younger, Gregg | MR | Free Agent | 25 | 10/10/1991 | Naperville | USA | Right | Left | 6' 4" | 195 lbs | - |
| Yu, Chong-su | CF | Free Agent | 27 | 06/19/1989 | Koyang | KOR | Switch | Right | 5' 11" | 208 lbs | - |
| Yuan, Ju-wei | MR | Sandy Springs Spartans | 23 | 10/30/1993 | Terrebonne | CAN | Left | Right | 6' 3" | 230 lbs | - |
| Yuke, Ed | SP | Newark Jail Birds | 21 | 08/01/1995 | Montreal | CAN | Right | Left | 6' 3" | 265 lbs | - |
