| Player | Team | Action | Details | |
|---|---|---|---|---|
| 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 |
| Kevin Plawecki | Chinballs | ADD | to MLB | 4:52 pm, 8/22/18 |
| Nick Solak | Purple Cobras | ADD | to AA | 1:48 pm, 8/22/18 |
| Brian Johnson | Purple Cobras | ADD | to MLB | 1:19 pm, 8/22/18 |
| Tyler Austin | Purple Cobras | ADD | to MLB | 1:18 pm, 8/22/18 |
| Jonathan Arauz | Ye Olde Tom Toolshed | ADD | to AA | 1:08 pm, 8/22/18 |
| Taylor Rogers | Ye Olde Tom Toolshed | ADD | to MLB | 1:07 pm, 8/22/18 |
| Heath Fillmyer | Supreme Clientele | ADD | to AA | 11:07 am, 8/22/18 |
| Kevin Newman | Bridge Four | ADD | to MLB | 6:54 pm, 8/21/18 |