| Player | Team | Action | Details | |
|---|---|---|---|---|
| Alen Hanson | Ye Olde Tom Toolshed | ADD | to MLB | 1:43 pm, 8/2/18 |
| Michael A. Taylor | Shaolin Schmeckles | ADD | to MLB | 3:53 am, 8/2/18 |
| Keury Mella | Supreme Clientele | ADD | to AA | 2:39 pm, 8/1/18 |
| Ariel Jurado | Supreme Clientele | ADD | to AAA | 2:33 pm, 8/1/18 |
| Sam Gaviglio | The Red Barons | ADD | to MLB | 10:32 am, 8/1/18 |
| Tommy Milone | Purple Cobras | ADD | to MLB | 9:11 am, 8/1/18 |
| Brian Johnson | Purple Cobras | ADD | to MLB | 9:10 am, 8/1/18 |
| Trevor Rosenthal | The Red Barons | ADD | to NA | 7:03 pm, 7/31/18 |
| Will Harris | Geckos | ADD | to MLB | 1:52 pm, 7/31/18 |
| 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 |