| Player | Team | Action | Details | |
|---|---|---|---|---|
| Hector Neris | Purple Cobras | ADD | to MLB | 11:53 pm, 8/28/18 |
| Gabriel Arias | The Red Barons | ADD | to A | 7:34 am, 8/28/18 |
| Ryan Madson | The Red Barons | ADD | to MLB | 6:44 am, 8/28/18 |
| Koda Glover | The Red Barons | ADD | to MLB | 6:42 am, 8/28/18 |
| Adam Engel | Shaolin Schmeckles | ADD | to MLB | 6:54 pm, 8/27/18 |
| Daniel Poncedeleon | Supreme Clientele | ADD | to NA | 10:31 am, 8/27/18 |
| Evan White | Purple Cobras | ADD | to A | 8:40 am, 8/27/18 |
| Pat Neshek | Purple Cobras | ADD | to MLB | 8:37 am, 8/27/18 |
| Tyler Austin | Purple Cobras | ADD | to MLB | 8:36 am, 8/27/18 |
| Christian Villanueva | Cowboys From Hell | ADD | to MLB | 7:48 am, 8/27/18 |
| Daniel Palka | Cowboys From Hell | ADD | to MLB | 7:47 am, 8/27/18 |
| Luke Voit | Cowboys From Hell | ADD | to MLB | 7:46 am, 8/27/18 |
| Junior Guerra | Hill Valley Preservation Society | ADD | to MLB | 6:44 am, 8/27/18 |
| Jefry Rodriguez | The Red Barons | ADD | to MLB | 11:47 am, 8/26/18 |
| Tyler Phillips | The Bluth Company | ADD | to A | 5:49 pm, 8/25/18 |
| Michael King | The Bluth Company | ADD | to AA | 10:44 am, 8/25/18 |
| Framber Valdez | The Bluth Company | ADD | to AA | 9:19 am, 8/25/18 |
| Billy McKinney | The Bluth Company | ADD | to AAA | 8:07 pm, 8/24/18 |
| Alec Mills | Shaolin Schmeckles | ADD | to AAA | 7:45 pm, 8/24/18 |
| Roman Quinn | The Bluth Company | ADD | to AAA | 7:35 pm, 8/24/18 |
| Dean Kremer | Ye Olde Tom Toolshed | ADD | to AA | 12:41 pm, 8/24/18 |
| Jorge Lopez | Chinballs | ADD | to MLB | 4:54 pm, 8/22/18 |
| Kolten Wong | Chinballs | ADD | to MLB | 4:54 pm, 8/22/18 |
| Matthew Strahm | Chinballs | ADD | to MLB | 4:54 pm, 8/22/18 |
| Alvarado Jose | Chinballs | ADD | to MLB | 4:53 pm, 8/22/18 |