| Player | Team | Action | Details | |
|---|---|---|---|---|
| Kolten Wong | Chinballs | ADD | to MLB | 3:50 pm, 5/30/18 |
| Wei-Yin Chen | Nixon's Nasty Ninjas | ADD | to MLB | 12:32 pm, 5/30/18 |
| Adam Conley | Nixon's Nasty Ninjas | ADD | to MLB | 12:32 pm, 5/30/18 |
| David Hess | Bridge Four | ADD | to MLB | 10:14 am, 5/30/18 |
| Devon Travis | Cowboys From Hell | ADD | to MLB | 10:08 am, 5/30/18 |
| Bubba Thompson | Scranton Yankees | ADD | to AAA | 9:28 am, 5/30/18 |
| Daniel Palka | Purple Cobras | ADD | to MLB | 8:35 am, 5/30/18 |
| Trevor Stephan | The Bluth Company | ADD | to AAA | 9:13 pm, 5/29/18 |
| Hector Rondon | Hill Valley Preservation Society | ADD | to MLB | 2:16 pm, 5/29/18 |
| Ke'Bryan Hayes | Hill Valley Preservation Society | ADD | to AA | 2:07 pm, 5/29/18 |
| Yairo Munoz | The Bluth Company | ADD | to AAA | 1:07 pm, 5/29/18 |
| Jonathan Loaisiga | The Bluth Company | ADD | to AA | 12:47 pm, 5/29/18 |
| Manny Pina | Kimble's Kids | ADD | to MLB | 12:42 pm, 5/29/18 |
| Brian McCann | Kimble's Kids | ADD | to MLB | 12:42 pm, 5/29/18 |
| Taylor Widener | Chinballs | ADD | to A | 12:24 pm, 5/29/18 |
| Blaine Hardy | Hill Valley Preservation Society | ADD | to MLB | 10:31 am, 5/29/18 |
| Mike Montgomery | The Red Barons | ADD | to MLB | 5:29 am, 5/29/18 |
| Max Muncy | The Bluth Company | ADD | to MLB | 9:17 pm, 5/28/18 |
| Mike Montgomery | The Bluth Company | ADD | to MLB | 7:25 pm, 5/28/18 |
| Jose Pirela | The Red Barons | ADD | to MLB | 9:45 am, 5/28/18 |
| Andrew Knizer | Purple Cobras | ADD | to AAA | 9:24 am, 5/28/18 |
| Drew Waters | The Bluth Company | ADD | to AA | 9:16 am, 5/28/18 |
| Caleb Ferguson | Purple Cobras | ADD | to AAA | 9:12 am, 5/28/18 |
| Jonathan Hernandez | Purple Cobras | ADD | to A | 9:11 am, 5/28/18 |
| Edgar Santana | The Bluth Company | ADD | to AA | 7:01 pm, 5/27/18 |