Marlins Roster & Staff
Transactions
| Date | Transaction |
| 07/31/10 | Baltimore Orioles traded LHP Will Ohman to Florida Marlins for RHP Rick van den Hurk. |
| 07/31/10 | Baltimore Orioles traded LHP Will Ohman to Florida Marlins for RHP Rick van den Hurk. |
| 07/30/10 | Florida Marlins selected the contract of Hector Luna from New Orleans Zephyrs. |
| 07/30/10 | Florida Marlins sent Kris Harvey outright to Jacksonville Suns. |
| 07/30/10 | Florida Marlins Traded 1B Jorge Cantu to Texas Rangers; Texas Rangers Traded RHP Omar Poveda to Florida Marlins and Frisco RoughRiders Traded RHP Evan Reed to Jacksonville Suns. |
| 07/30/10 | Florida Marlins Traded 1B Jorge Cantu to Texas Rangers; Texas Rangers Traded RHP Omar Poveda to Florida Marlins and Frisco RoughRiders Traded RHP Evan Reed to Jacksonville Suns. |
| 07/27/10 | Florida Marlins designated Kris Harvey for assignment. |
| 07/27/10 | Zach Neal assigned to Jamestown Jammers from Florida Marlins. |
| 07/27/10 | Florida Marlins released LHP Nate Robertson. |
| 07/27/10 | Cameron Maybin assigned to New Orleans Zephyrs from Florida Marlins. |
| 07/27/10 | Florida Marlins selected the contract of LF Logan Morrison from New Orleans Zephyrs. |
| 07/27/10 | Florida Marlins placed LF Chris Coghlan on the 15-day disabled list retroactive to July 26, 2010. Left knee injury. |
| 07/25/10 | Florida Marlins placed RHP Jhan Marinez on the 15-day disabled list. Right elbow strain. |
| 07/25/10 | Florida Marlins recalled Chris Volstad from New Orleans Zephyrs. |
| 07/21/10 | Florida Marlins selected the contract of Brad Davis from New Orleans Zephyrs. |
| 07/21/10 | Florida Marlins sent 1B Mike Lamb outright to New Orleans Zephyrs. |
| 07/21/10 | Florida Marlins designated LHP Nate Robertson for assignment. |
| 07/21/10 | Florida Marlins placed C Brett Hayes on the 15-day disabled list. Left wrist contusion. |
| 07/21/10 | Florida Marlins selected the contract of RHP Jorge Sosa from New Orleans Zephyrs. |
| 07/20/10 | RHP Jeremy Weber assigned to GCL Marlins from Florida Marlins. |
| 07/19/10 | Florida Marlins signed RHP Jeremy Weber. |
| 07/18/10 | Florida Marlins recalled Bryan Petersen from New Orleans Zephyrs. |
| 07/18/10 | Florida Marlins designated Mike Lamb for assignment. |
| 07/16/10 | Rob Rasmussen assigned to GCL Marlins from Florida Marlins. |
| 07/16/10 | Florida Marlins selected the contract of RHP Jhan Marinez from Jacksonville Suns. |
| 07/16/10 | Florida Marlins signed RHP Zach Neal. |
| 07/15/10 | Florida Marlins signed LHP Rob Rasmussen. |
| 07/14/10 | Austin Brice assigned to GCL Marlins from Florida Marlins. |
| 07/14/10 | Florida Marlins sent LHP Dan Meyer outright to New Orleans Zephyrs. |
| 07/13/10 | Florida Marlins signed RHP Austin Brice. |
| 07/09/10 | Florida Marlins selected the contract of Dan Meyer from New Orleans Zephyrs. |
| 07/09/10 | Florida Marlins optioned RHP Tim Wood to New Orleans Zephyrs. |
| 07/08/10 | Florida Marlins sent 3B Brian Barden outright to New Orleans Zephyrs. |
| 07/07/10 | Danny Black assigned to Jamestown Jammers from Florida Marlins. |
| 07/07/10 | Florida Marlins optioned Chris Volstad to New Orleans Zephyrs. |
| 07/07/10 | Florida Marlins recalled Burke Badenhop from New Orleans Zephyrs. |
| 07/06/10 | Florida Marlins signed SS Danny Black. |
| 07/03/10 | Florida Marlins selected the contract of 3B Donnie Murphy from New Orleans Zephyrs. |
| 07/03/10 | Florida Marlins designated Brian Barden for assignment. |
| 07/02/10 | Florida Marlins sent RHP Scott Strickland outright to New Orleans Zephyrs. |
| 07/02/10 | Florida Marlins activated RHP Clay Hensley from the 15-day disabled list. |