| Player | Team | Action | Details | |
|---|---|---|---|---|
| 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 |
| Blaine Hardy | The Red Barons | ADD | to MLB | 7:38 pm, 8/7/18 |
| Adalberto Mejia | Shaolin Schmeckles | ADD | to AA | 3:46 pm, 8/7/18 |
| Josh Reddick | Shaolin Schmeckles | ADD | to MLB | 8:00 pm, 8/6/18 |
| Zack Collins | The Bluth Company | ADD | to AAA | 3:41 pm, 8/6/18 |
| Bobby Dalbec | Purple Cobras | ADD | to AA | 2:56 pm, 8/6/18 |
| Derek Dietrich | Shaolin Schmeckles | ADD | to MLB | 1:28 pm, 8/6/18 |
| Vidal Brujan | The Bluth Company | ADD | to AA | 12:49 pm, 8/6/18 |