| Name JPN | Name ENG | Notes | Official |
|---|---|---|---|
| 高良一輝 | Kazuki Takara | [10/05] Thinking about attending NPB tryout. Sports Hochi 10/5/2018, Nikkan Sports 10/5/2018, Sponichi 10/5/2018 | 10/5 |
| 大嶋匠 | Takumi Oshima | [10/05] Recovering from right knee injury suffered in August. Planning to retire. Sports Hochi 10/5/2018, Daily Sports 10/5/2018, Nikkan Sports 10/5/2018, Sponichi 10/5/2018 | 10/5 |