| Player | Team | Action | Details | |
|---|---|---|---|---|
| Brett Anderson | Supreme Clientele | ADD | to MLB | 3:44 pm, 8/13/18 |
| Matt Boyd | Supreme Clientele | ADD | to MLB | 3:44 pm, 8/13/18 |
| Mychal Givens | Supreme Clientele | ADD | to MLB | 3:44 pm, 8/13/18 |
| Corey Oswalt | Shaolin Schmeckles | ADD | to AA | 1:57 pm, 8/13/18 |
| Artie Lewicki | Chinballs | ADD | to MLB | 1:16 pm, 8/13/18 |
| Christian Villanueva | Purple Cobras | ADD | to MLB | 1:05 pm, 8/13/18 |
| Koda Glover | The Bluth Company | ADD | to AAA | 12:26 am, 8/13/18 |
| Daniel Palka | Purple Cobras | ADD | to MLB | 2:58 pm, 8/11/18 |
| Adam Conley | Hill Valley Preservation Society | ADD | to MLB | 11:42 am, 8/11/18 |
| David Freese | Purple Cobras | ADD | to MLB | 7:39 am, 8/11/18 |
| Kevin Kiermaier | Bridge Four | ADD | to MLB | 6:26 pm, 8/10/18 |
| Jason Heyward | Bridge Four | ADD | to MLB | 6:25 pm, 8/10/18 |
| Cedric Mullins | The Bluth Company | ADD | to AAA | 3:42 pm, 8/10/18 |
| Ramon Laureano | Purple Cobras | ADD | to AAA | 6:13 am, 8/10/18 |
| Russell Martin | Bridge Four | ADD | to MLB | 5:06 pm, 8/9/18 |
| David Bote | The Bluth Company | ADD | to AAA | 3:30 pm, 8/9/18 |
| Shervyen Newton | The Bluth Company | ADD | to A | 3:29 pm, 8/9/18 |
| Tyler White | Purple Cobras | ADD | to MLB | 8:33 am, 8/9/18 |
| Cedric Mullins | The Bluth Company | ADD | to AAA | 6:49 pm, 8/8/18 |
| John Gant | Shaolin Schmeckles | ADD | to MLB | 5:04 pm, 8/8/18 |
| Jacob Nix | The Red Barons | ADD | to AAA | 1:31 pm, 8/8/18 |
| Phil Ervin | Purple Cobras | ADD | to MLB | 6:11 am, 8/8/18 |
| Mark Melancon | Geckos | ADD | to MLB | 12:59 am, 8/8/18 |
| Sal Romano | Chinballs | ADD | to MLB | 8:37 pm, 8/7/18 |
| Colin Poche | The Red Barons | ADD | to AAA | 7:39 pm, 8/7/18 |