Rays Roster & Staff
Transactions
| Date | Transaction |
| 07/31/15 | Tampa Bay Rays sent LHP Drew Smyly on a rehab assignment to Charlotte Stone Crabs. |
| 07/31/15 | Tampa Bay Rays traded RHP Kevin Jepsen to Minnesota Twins for RHP Chih-Wei Hu and RHP Alexis Tapia. |
| 07/31/15 | Tampa Bay Rays recalled Mikie Mahtook from Durham Bulls. |
| 07/31/15 | Tampa Bay Rays traded RHP Kevin Jepsen to Minnesota Twins for RHP Chih-Wei Hu and RHP Alexis Tapia. |
| 07/31/15 | Tampa Bay Rays traded RHP Kevin Jepsen to Minnesota Twins for RHP Chih-Wei Hu and RHP Alexis Tapia. |
| 07/31/15 | Tampa Bay Rays sent CF Desmond Jennings on a rehab assignment to Durham Bulls. |
| 07/31/15 | Tampa Bay Rays recalled Kirby Yates from Durham Bulls. |
| 07/31/15 | Texas Rangers claimed C Bobby Wilson off waivers from Tampa Bay Rays. |
| 07/29/15 | Tampa Bay Rays selected the contract of C Bobby Wilson from Durham Bulls. |
| 07/28/15 | Tampa Bay Rays traded LF David DeJesus to Los Angeles Angels for RHP Eduar Lopez. |
| 07/28/15 | Tampa Bay Rays traded LF David DeJesus to Los Angeles Angels for RHP Eduar Lopez. |
| 07/28/15 | Tampa Bay Rays optioned 1B Jake Elmore to Durham Bulls. |
| 07/28/15 | Tampa Bay Rays activated SS Asdrubal Cabrera from the 15-day disabled list. |
| 07/26/15 | Tampa Bay Rays sent LHP Drew Smyly on a rehab assignment to Durham Bulls. |
| 07/21/15 | Tampa Bay Rays activated RF Steven Souza Jr. from the 15-day disabled list. |
| 07/21/15 | Tampa Bay Rays optioned RF Grady Sizemore to Durham Bulls. |
| 07/18/15 | Tampa Bay Rays sent RF Steven Souza Jr. on a rehab assignment to Charlotte Stone Crabs. |
| 07/17/15 | Tampa Bay Rays signed RHP Tyler Brashears. |
| 07/17/15 | Tampa Bay Rays signed C Chris Betts. |
| 07/16/15 | Tampa Bay Rays signed RHP Justin Marsden. |
| 07/16/15 | Tampa Bay Rays signed RHP Nicholas Padilla. |
| 07/12/15 | Tampa Bay Rays placed SS Asdrubal Cabrera on the 15-day disabled list. Strained right hamstring. |
| 07/12/15 | Tampa Bay Rays recalled Tim Beckham from Durham Bulls. |
| 07/11/15 | Tampa Bay Rays activated RHP Jake Odorizzi from the 15-day disabled list. |
| 07/11/15 | Tampa Bay Rays optioned RHP Andrew Bellatti to Durham Bulls. |
| 07/10/15 | Los Angeles Dodgers claimed Preston Guilmet off waivers from Tampa Bay Rays. |
| 07/10/15 | Tampa Bay Rays sent LHP Everett Teaford outright to Durham Bulls. |
| 07/09/15 | Tampa Bay Rays signed free agent RHP Eduard Rosillo to a minor league contract. |
| 07/08/15 | Andrew Bellatti roster status changed by Tampa Bay Rays. |
| 07/08/15 | Tampa Bay Rays designated LHP Everett Teaford for assignment. |
| 07/08/15 | Tampa Bay Rays optioned RHP Matt Andriese to Durham Bulls. |
| 07/07/15 | Tampa Bay Rays recalled Matt Andriese from Durham Bulls. |
| 07/07/15 | Tampa Bay Rays activated DH John Jaso from the 60-day disabled list. |
| 07/07/15 | Tampa Bay Rays designated RHP Preston Guilmet for assignment. |
| 07/07/15 | Tampa Bay Rays placed RF Steven Souza Jr. on the 15-day disabled list retroactive to July 6, 2015. Deep laceration on his right pinkie |
| 07/06/15 | Detroit Tigers claimed 1B Marc Krauss off waivers from Tampa Bay Rays. |
| 07/06/15 | Tampa Bay Rays signed RHP Edrick Agosto. |
| 07/06/15 | Tampa Bay Rays signed RHP Jesus Ortiz. |
| 07/04/15 | Tampa Bay Rays signed RHP Ethan Clark. |
| 07/04/15 | RHP Ronald Belisario elected free agency. |
| 07/04/15 | Tampa Bay Rays signed free agent C Luis Perez to a minor league contract. |
| 07/04/15 | Tampa Bay Rays signed free agent 3B Yan Carlos Reyes to a minor league contract. |
| 07/04/15 | Tampa Bay Rays designated 1B Marc Krauss for assignment. |
| 07/04/15 | Tampa Bay Rays selected the contract of LHP Everett Teaford from Durham Bulls. |
| 07/04/15 | Tampa Bay Rays optioned LHP C.J. Riefenhauser to Durham Bulls. |
| 07/04/15 | Tampa Bay Rays signed free agent P Aldor Rodriguez to a minor league contract. |
| 07/03/15 | Tampa Bay Rays optioned RHP Preston Guilmet to Durham Bulls. |
| 07/03/15 | Tampa Bay Rays activated 1B James Loney from the 15-day disabled list. |
| 07/02/15 | Tampa Bay Rays signed free agent IF Jhosner Vargas to a minor league contract. |
| 07/02/15 | Tampa Bay Rays optioned 1B Marc Krauss to Durham Bulls. |
| 07/02/15 | 3B Matt Dacey assigned to Tampa Bay Rays. |
| 07/02/15 | Matt Moore roster status changed by Tampa Bay Rays. |
| 07/02/15 | Atlanta Braves traded RHP Garrett Fulenchek to Tampa Bay Rays for Other Considerations. |
| 07/02/15 | Tampa Bay Rays signed OF Joe McCarthy. |
| 07/02/15 | Tampa Bay Rays signed free agent OF Raider Brito to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent SS Luis Arias to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent 2B Cristhian Pedroza to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent SS Juan Garcia to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent SS Jose Pereira to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent C Gioser Tejeda to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent SS Jonathan Aranda to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent OF Pedro Diaz to a minor league contract. |
| 07/02/15 | Tampa Bay Rays signed free agent SS Luis Leon to a minor league contract. |
| 07/01/15 | Tampa Bay Rays sent RHP Jake Odorizzi on a rehab assignment to Charlotte Stone Crabs. |
| 07/01/15 | Tampa Bay Rays recalled Preston Guilmet from Durham Bulls. |
| 07/01/15 | Tampa Bay Rays recalled C.J. Riefenhauser from Durham Bulls. |
| 07/01/15 | Tampa Bay Rays optioned RHP Kirby Yates to Durham Bulls. |
| 07/01/15 | Tampa Bay Rays designated RHP Ronald Belisario for assignment. |
| 07/01/15 | Tampa Bay Rays signed CF Ryan Caldwell. |