Rays Roster & Staff
Transactions
| Date | Transaction |
| 04/30/15 | Tampa Bay Rays placed RHP Erasmo Ramirez on the paternity list. |
| 04/30/15 | Tampa Bay Rays optioned RHP Matt Andriese to Durham Bulls. |
| 04/30/15 | Tampa Bay Rays sent LHP Everett Teaford outright to Durham Bulls. |
| 04/28/15 | Tampa Bay Rays sent LHP Jake McGee on a rehab assignment to Charlotte Stone Crabs. |
| 04/28/15 | Tampa Bay Rays signed free agent OF Moises Gomez to a minor league contract. |
| 04/28/15 | Tampa Bay Rays designated LHP Everett Teaford for assignment. |
| 04/28/15 | Tampa Bay Rays activated LHP Xavier Cedeno. |
| 04/27/15 | Los Angeles Dodgers traded LHP Xavier Cedeno to Tampa Bay Rays for cash. |
| 04/27/15 | Tampa Bay Rays released RHP Grant Balfour. |
| 04/27/15 | Tampa Bay Rays transferred DH John Jaso from the 15-day disabled list to the 60-day disabled list. Left wrist contusion |
| 04/26/15 | Tampa Bay Rays sent 1B Allan Dykstra outright to Durham Bulls. |
| 04/25/15 | Tampa Bay Rays designated 1B Allan Dykstra for assignment. |
| 04/25/15 | Tampa Bay Rays selected the contract of LHP Everett Teaford from Durham Bulls. |
| 04/25/15 | Tampa Bay Rays optioned RHP Jose Dominguez to Durham Bulls. |
| 04/24/15 | Tampa Bay Rays activated LHP Drew Smyly from the 15-day disabled list. |
| 04/24/15 | Tampa Bay Rays activated 1B James Loney from the 15-day disabled list. |
| 04/24/15 | Tampa Bay Rays optioned CF Mikie Mahtook to Durham Bulls. |
| 04/24/15 | Tampa Bay Rays optioned 1B Allan Dykstra to Durham Bulls. |
| 04/23/15 | Tampa Bay Rays sent 1B James Loney on a rehab assignment to Charlotte Stone Crabs. |
| 04/23/15 | Tampa Bay Rays recalled Mikie Mahtook from Durham Bulls. |
| 04/23/15 | C.J. Riefenhauser roster status changed by Tampa Bay Rays. |
| 04/22/15 | Ryan Brett roster status changed by Tampa Bay Rays. |
| 04/22/15 | Tampa Bay Rays selected the contract of Jake Elmore from Durham Bulls. |
| 04/22/15 | Tampa Bay Rays transferred LHP Jeff Beliveau from the 15-day disabled list to the 60-day disabled list. left shoulder soreness |
| 04/21/15 | Tampa Bay Rays sent RHP Alex Colome on a rehab assignment to Durham Bulls. |
| 04/19/15 | Tampa Bay Rays sent LHP Drew Smyly on a rehab assignment to Montgomery Biscuits. |
| 04/19/15 | Tampa Bay Rays selected the contract of RHP Brandon Gomes from Durham Bulls. |
| 04/19/15 | Tampa Bay Rays designated RHP Grant Balfour for assignment. |
| 04/17/15 | Tampa Bay Rays placed LHP Jeff Beliveau on the 15-day disabled list retroactive to April 16, 2015. left shoulder soreness |
| 04/17/15 | Tampa Bay Rays recalled LHP C.J. Riefenhauser from Durham Bulls. |
| 04/17/15 | Tampa Bay Rays signed free agent C J.P. Arencibia to a minor league contract. |
| 04/17/15 | Tampa Bay Rays optioned CF Mikie Mahtook to Durham Bulls. |
| 04/17/15 | Tampa Bay Rays recalled 2B Ryan Brett from Durham Bulls. |
| 04/17/15 | Tampa Bay Rays signed free agent LHP Andy Oliver to a minor league contract. |
| 04/16/15 | Tampa Bay Rays signed free agent OF Emilio Gustave to a minor league contract. |
| 04/15/15 | Tampa Bay Rays optioned RHP Kirby Yates to Durham Bulls. |
| 04/15/15 | Kirby Yates roster status changed by Tampa Bay Rays. |
| 04/15/15 | Tampa Bay Rays recalled Jose Dominguez from Durham Bulls. |
| 04/11/15 | Tampa Bay Rays sent RHP Alex Colome on a rehab assignment to Charlotte Stone Crabs. |
| 04/10/15 | Tampa Bay Rays placed C John Jaso on the 15-day disabled list retroactive to April 7, 2015. Left wrist contusion |
| 04/10/15 | Tampa Bay Rays recalled Mikie Mahtook from Durham Bulls. |
| 04/09/15 | Tampa Bay Rays signed free agent 2B Alexi Casilla to a minor league contract. |
| 04/08/15 | Tampa Bay Rays placed 1B James Loney on the 15-day disabled list retroactive to April 7, 2015. Mild right oblique strain |
| 04/08/15 | Tampa Bay Rays recalled RHP Burch Smith from Durham Bulls. |
| 04/08/15 | Tampa Bay Rays selected the contract of Allan Dykstra from Durham Bulls. |
| 04/08/15 | Tampa Bay Rays placed RHP Burch Smith on the 60-day disabled list. Recovering from April 2015 Tommy John surgery |
| 04/07/15 | Tampa Bay Rays sent LHP Drew Smyly on a rehab assignment to Charlotte Stone Crabs. |
| 04/05/15 | Tampa Bay Rays placed SS Nick Franklin on the 15-day disabled list retroactive to March 27, 2015. Left oblique strain |
| 04/05/15 | Tampa Bay Rays placed LHP Drew Smyly on the 15-day disabled list retroactive to March 27, 2015. Left shoulder tendinitis |
| 04/05/15 | Tampa Bay Rays signed free agent LHP Scott Diamond to a minor league contract. |
| 04/05/15 | Tampa Bay Rays signed free agent RHP Bradin Hagens to a minor league contract. |
| 04/05/15 | Tampa Bay Rays placed LHP Matt Moore on the 60-day disabled list. Recovering from April 2014 Tommy John surgery |
| 04/05/15 | Tampa Bay Rays placed RHP Alex Cobb on the 15-day disabled list retroactive to March 27, 2015. Right forearm tendinitis |
| 04/05/15 | Tampa Bay Rays placed LHP Jake McGee on the 15-day disabled list. Recovering from December 2014 left elbow surgery |
| 04/05/15 | Tampa Bay Rays selected the contract of C Bobby Wilson from Durham Bulls. |
| 04/04/15 | RHP Nick Sawyer assigned to Tampa Bay Rays. |
| 04/04/15 | CF Zacrey Law assigned to Tampa Bay Rays. |
| 04/03/15 | Tampa Bay Rays optioned LHP C.J. Riefenhauser to Durham Bulls. |
| 04/03/15 | Tampa Bay Rays optioned C Curt Casali to Durham Bulls. |
| 04/01/15 | RHP Mark Sappington assigned to Tampa Bay Rays. |