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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Wada, Kenshin | SS | Free Agent | 19 | 12/16/1996 | Tokyo | JPN | Right | Right | 6' 2" | 220 lbs | - |
| Wada, Toshiharu | LF | Chunichi Dragons | 18 | 03/06/1997 | Ena | JPN | Left | Left | 5' 11" | 190 lbs | - |
| Wakabayashi, Kosaku | LF | Free Agent | 34 | 01/27/1981 | Ibaraki | JPN | Right | Right | 5' 10" | 195 lbs | - |
| Wakabayashi, Shigemasa | C | Free Agent | 20 | 03/09/1995 | Fujisawa | JPN | Switch | Right | 6' 2" | 185 lbs | - |
| Wakabayashi, Yoshifumi | RF | Free Agent | 18 | 10/20/1997 | Otsu | JPN | Right | Right | 5' 10" | 185 lbs | - |
| Wakatabe, Eiichi | 1B | Free Agent | 33 | 05/08/1982 | Himeji | JPN | Left | Left | 6' 2" | 210 lbs | - |
| Watanabe, Akihito | 1B | Free Agent | 20 | 06/23/1995 | Matsusaka | JPN | Right | Right | 6' 3" | 235 lbs | - |
| Watanabe, Daisuke | SS | Free Agent | 27 | 10/19/1988 | Nagoya | JPN | Right | Right | 6' 2" | 215 lbs | - |
| Watanabe, Hiroshi | SS | Yomiuri Giants | 32 | 07/18/1983 | Nagoya | JPN | Right | Right | 6' 0" | 195 lbs | - |
| Watanabe, Ietsuna | 1B | Free Agent | 27 | 09/08/1988 | Osaka | JPN | Left | Left | 6' 0" | 221 lbs | - |
| Watanabe, Jo | LF | Free Agent | 22 | 11/08/1993 | Kagoshima | JPN | Switch | Right | 6' 1" | 195 lbs | - |
| Watanabe, Katsuyoshi | MR | Yomiuri Giants | 29 | 09/23/1986 | Takasaki | JPN | Left | Left | 6' 0" | 190 lbs | - |
| Watanabe, Keisuke | C | Free Agent | 19 | 09/12/1996 | Akiruno | JPN | Left | Right | 5' 11" | 200 lbs | - |
| Watanabe, Kenko | 1B | Free Agent | 33 | 03/26/1982 | Urasoe | JPN | Left | Left | 6' 5" | 238 lbs | - |
| Watanabe, Kichisaburo | MR | Free Agent | 33 | 03/23/1982 | Kobe | JPN | Right | Right | 5' 11" | 195 lbs | - |
| Watanabe, Konosuke | SS | Free Agent | 25 | 09/21/1990 | Tokyo | JPN | Right | Right | 5' 11" | 217 lbs | - |
| Watanabe, Kosaku | SS | Fukuoka SoftBank Hawks | 30 | 01/28/1985 | Kawaguchi | JPN | Right | Right | 6' 0" | 187 lbs | - |
| Watanabe, Masato | MR | Tohoku Rakuten Golden Eagles | 25 | 07/30/1990 | Hitoyoshi | JPN | Right | Right | 5' 11" | 190 lbs | - |
| Watanabe, Mito | RF | Free Agent | 36 | 10/15/1979 | Ageo | JPN | Right | Right | 6' 0" | 212 lbs | - |
| Watanabe, Namboku | CF | Free Agent | 32 | 06/28/1983 | Izumi | JPN | Right | Right | 6' 0" | 199 lbs | - |
| Watanabe, Sadaharu | C | Free Agent | 32 | 11/15/1983 | Tokyo | JPN | Right | Right | 6' 5" | 205 lbs | - |
| Watanabe, Sumiteru | LF | Free Agent | 29 | 12/13/1986 | Izumi | JPN | Switch | Right | 6' 0" | 193 lbs | - |
| Watanabe, Takeo | C | Free Agent | 19 | 08/24/1996 | Shiraoka | JPN | Right | Right | 6' 3" | 220 lbs | - |
| Watanabe, Tsugiharu | 1B | Free Agent | 34 | 09/28/1981 | Ninomiya | JPN | Right | Right | 6' 2" | 195 lbs | - |
| Watanabe, Yasunari | C | Free Agent | 20 | 09/25/1995 | Oi | JPN | Right | Right | 6' 6" | 210 lbs | - |
| Watanabe, Yoriyoshi | LF | Chunichi Dragons | 27 | 03/20/1988 | Ichinoseki | JPN | Right | Right | 6' 0" | 220 lbs | - |
| Watanabe, Yoshihisa | 1B | Free Agent | 34 | 01/10/1981 | Ube | JPN | Right | Right | 6' 3" | 230 lbs | - |
| Watanabe, Yoshimitsu | MR | Free Agent | 17 | 05/13/1998 | Shibushi | JPN | Right | Right | 5' 10" | 210 lbs | - |
| Watanabe, Yoshitora | 2B | Free Agent | 22 | 04/28/1993 | Shimonoseki | JPN | Switch | Right | 5' 10" | 180 lbs | - |
| Watanabe, Yoson | SP | Free Agent | 26 | 06/29/1989 | Toyama | JPN | Right | Right | 6' 5" | 217 lbs | - |
