| Player | Team | Action | Details | |
|---|---|---|---|---|
| Deck McGuire | The Red Barons | DROP | to FA | 5:46 am, 7/2/18 |
| Francisco Liriano | Dead Rabbits | DROP | to FA | 11:12 pm, 7/1/18 |
| Wilmer Difo | Dead Rabbits | DROP | to FA | 11:11 pm, 7/1/18 |
| Brandon Finnegan | Nixon's Nasty Ninjas | DROP | to FA | 11:59 am, 7/1/18 |
| Adalberto Mejia | The Red Barons | DROP | to FA | 7:36 am, 7/1/18 |
| Asdrubal Cabrera | Supreme Clientele | DROP | to FA | 1:02 am, 7/1/18 |
| Justin Smoak | Supreme Clientele | DROP | to FA | 1:02 am, 7/1/18 |
| Mark Trumbo | The Red Barons | DROP | to FA | 8:18 am, 6/30/18 |
| Adalberto Mejia | The Red Barons | DROP | to FA | 8:09 am, 6/30/18 |
| Curtis Granderson | Shaolin Schmeckles | DROP | to FA | 3:26 am, 6/30/18 |
| Jake Marisnick | Shaolin Schmeckles | DROP | to FA | 3:26 am, 6/30/18 |
| Jordan Luplow | Shaolin Schmeckles | DROP | to FA | 3:18 am, 6/30/18 |
| Eric Skoglund | Shaolin Schmeckles | DROP | to FA | 4:25 pm, 6/29/18 |
| Jonathan Lucroy | Shaolin Schmeckles | DROP | to FA | 4:21 pm, 6/29/18 |
| Ryan Dull | Bridge Four | DROP | to FA | 10:09 am, 6/29/18 |
| Kevin Pillar | Bridge Four | DROP | to FA | 10:07 am, 6/29/18 |
| Brad Miller | The Red Barons | DROP | to FA | 6:15 am, 6/29/18 |
| Jason Heyward | Cowboys From Hell | DROP | to FA | 8:43 pm, 6/28/18 |
| Yan Gomes | Purple Cobras | DROP | to FA | 2:29 pm, 6/28/18 |
| Yohander Mendez | Ye Olde Tom Toolshed | DROP | to FA | 1:09 pm, 6/28/18 |
| Jake Cave | Ye Olde Tom Toolshed | DROP | to FA | 1:04 pm, 6/28/18 |
| Sam Carlson | The Red Barons | DROP | to FA | 12:46 pm, 6/28/18 |
| Kevin McCarthy | Geckos | DROP | to FA | 12:24 pm, 6/28/18 |
| Kendrys Morales | The Red Barons | DROP | to FA | 9:37 am, 6/28/18 |
| Mark Reynolds | Shaolin Schmeckles | DROP | to FA | 1:33 am, 6/28/18 |