| Player | Team | Action | Details | |
|---|---|---|---|---|
| Alex Claudio | Shaolin Schmeckles | ADD | to MLB | 1:39 pm, 7/31/18 |
| Matt Wisler | Supreme Clientele | ADD | to NA | 2:56 am, 7/31/18 |
| Lucas Sims | Supreme Clientele | ADD | to NA | 2:53 am, 7/31/18 |
| Nicky Lopez | Purple Cobras | ADD | to AA | 12:32 pm, 7/30/18 |
| Deivi Garcia | The Bluth Company | ADD | to AA | 11:50 am, 7/30/18 |
| Andrew Knizer | Purple Cobras | ADD | to AA | 8:16 am, 7/30/18 |
| Daniel Palka | Purple Cobras | ADD | to MLB | 7:20 am, 7/30/18 |
| Robbie Erlin | Purple Cobras | ADD | to MLB | 7:13 am, 7/30/18 |
| Anthony Swarzak | The Red Barons | ADD | to MLB | 6:50 am, 7/30/18 |
| Denard Span | Nixon's Nasty Ninjas | ADD | to MLB | 11:51 pm, 7/29/18 |
| Victor Martinez | Nixon's Nasty Ninjas | ADD | to MLB | 11:51 pm, 7/29/18 |
| Seung-hwan Oh | Nixon's Nasty Ninjas | ADD | to | 11:50 pm, 7/29/18 |
| Brett Gardner | Nixon's Nasty Ninjas | ADD | to | 11:49 pm, 7/29/18 |
| Ian Kinsler | Purple Cobras | ADD | to MLB | 3:50 am, 7/29/18 |
| Jackie Bradley Jr | Purple Cobras | ADD | to MLB | 3:50 am, 7/29/18 |
| Ariel Jurado | The Red Barons | ADD | to MLB | 2:03 pm, 7/28/18 |
| Mark Vientos | The Bluth Company | ADD | to A | 11:11 pm, 7/27/18 |
| Pedro Strop | Shaolin Schmeckles | ADD | to MLB | 7:17 pm, 7/27/18 |
| Roman Quinn | The Red Barons | ADD | to MLB | 6:32 pm, 7/27/18 |
| Jonathan Lucroy | Hill Valley Preservation Society | ADD | to MLB | 11:01 am, 7/27/18 |
| Jared Hughes | Hill Valley Preservation Society | ADD | to MLB | 10:45 am, 7/27/18 |
| Brandon Woodruff | Hill Valley Preservation Society | ADD | to AAA | 10:37 am, 7/27/18 |
| Ian Kinsler | The Red Barons | ADD | to MLB | 7:53 am, 7/27/18 |
| Francisco Cervelli | Chinballs | ADD | to MLB | 1:45 am, 7/27/18 |
| Keury Mella | The Red Barons | ADD | to AAA | 6:01 pm, 7/26/18 |