| Player | Team | Action | Details | |
|---|---|---|---|---|
| Austin Slater | Purple Cobras | ADD | to AAA | 10:46 am, 8/3/18 |
| Genesis Cabrera | The Bluth Company | ADD | to AAA | 10:06 pm, 8/2/18 |
| Mitch Garver | Cowboys From Hell | ADD | to MLB | 7:10 pm, 8/2/18 |
| Bobby Wahl | Shaolin Schmeckles | ADD | to MLB | 6:11 pm, 8/2/18 |
| Chris Stratton | Shaolin Schmeckles | ADD | to MLB | 4:15 pm, 8/2/18 |
| 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 |