| 9/1/17 |
Miami Marlins selected the contract of LHP Dillon Peters from Jacksonville Jumbo Shrimp. |
| 9/1/17 |
Miami Marlins selected the contract of 3B Brian Anderson from New Orleans Baby Cakes. |
| 9/1/17 |
Miami Marlins selected the contract of RHP Javy Guerra from New Orleans Baby Cakes. |
| 9/2/17 |
Miami Marlins sent 1B Justin Bour on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 9/4/17 |
Miami Marlins activated LHP Wei-Yin Chen from the 10-day disabled list. |
| 9/8/17 |
Miami Marlins activated 1B Justin Bour from the 10-day disabled list. |
| 9/19/17 |
Miami Marlins activated LHP Chris O'Grady from the 10-day disabled list. |
