Red Sox Roster & Staff
Transactions
| Date | Transaction |
| 07/31/18 | Boston Red Sox optioned SS Tzu-Wei Lin to Pawtucket Red Sox. |
| 07/31/18 | Boston Red Sox placed LHP Chris Sale on the 10-day disabled list retroactive to July 28, 2018. Mild left shoulder inflammation. |
| 07/31/18 | Boston Red Sox recalled RHP Brandon Workman from Pawtucket Red Sox. |
| 07/31/18 | Los Angeles Angels traded 2B Ian Kinsler and cash to Boston Red Sox for RHP Ty Buttrey and LHP Williams Jerez. |
| 07/31/18 | Los Angeles Angels traded 2B Ian Kinsler and cash to Boston Red Sox for RHP Ty Buttrey and LHP Williams Jerez. |
| 07/31/18 | Los Angeles Angels traded 2B Ian Kinsler and cash to Boston Red Sox for RHP Ty Buttrey and LHP Williams Jerez. |
| 07/29/18 | Boston Red Sox recalled Tzu-Wei Lin from Pawtucket Red Sox. |
| 07/29/18 | Boston Red Sox placed 3B Rafael Devers on the 10-day disabled list. Left hamstring strain. |
| 07/26/18 | Boston Red Sox optioned RHP Brandon Workman to Pawtucket Red Sox. |
| 07/25/18 | Tampa Bay Rays traded RHP Nathan Eovaldi to Boston Red Sox for LHP Jalen Beeks. |
| 07/25/18 | Tampa Bay Rays traded RHP Nathan Eovaldi to Boston Red Sox for LHP Jalen Beeks. |
| 07/24/18 | Boston Red Sox optioned SS Tzu-Wei Lin to Pawtucket Red Sox. |
| 07/24/18 | Boston Red Sox activated LHP Drew Pomeranz from the 10-day disabled list. |
| 07/23/18 | Boston Red Sox signed free agent 3B Gregori Custodio to a minor league contract. |
| 07/21/18 | Boston Red Sox optioned LHP Bobby Poyner to Pawtucket Red Sox. |
| 07/21/18 | Boston Red Sox activated 3B Rafael Devers from the 10-day disabled list. |
| 07/20/18 | Boston Red Sox signed free agent RHP Mark Montgomery to a minor league contract. |
| 07/20/18 | Boston Red Sox optioned Sam Travis to Pawtucket Red Sox. |
| 07/16/18 | Boston Red Sox optioned 1B Sam Travis to Pawtucket Red Sox. |
| 07/16/18 | Boston Red Sox activated LF Andrew Benintendi from the bereavement list. |
| 07/15/18 | Boston Red Sox activated LHP Brian Johnson from the 10-day disabled list. |
| 07/15/18 | Boston Red Sox placed LHP Eduardo Rodriguez on the 10-day disabled list. Right ankle sprain. |
| 07/14/18 | Boston Red Sox optioned LHP Robby Scott to Pawtucket Red Sox. |
| 07/14/18 | Boston Red Sox recalled Bobby Poyner from Pawtucket Red Sox. |
| 07/13/18 | Boston Red Sox recalled Sam Travis from Pawtucket Red Sox. |
| 07/13/18 | Boston Red Sox placed LF Andrew Benintendi on the bereavement list. |
| 07/12/18 | Boston Red Sox placed 3B Rafael Devers on the 10-day disabled list retroactive to July 11, 2018. Left shoulder inflammation. |
| 07/12/18 | Boston Red Sox recalled Tzu-Wei Lin from Pawtucket Red Sox. |
| 07/11/18 | Boston Red Sox recalled Robby Scott from Pawtucket Red Sox. |
| 07/11/18 | Boston Red Sox optioned LHP Jalen Beeks to Pawtucket Red Sox. |
| 07/10/18 | Boston Red Sox optioned RHP William Cuevas to Pawtucket Red Sox. |
| 07/10/18 | Boston Red Sox recalled Jalen Beeks from Pawtucket Red Sox. |
| 07/09/18 | Boston Red Sox signed free agent SS Brainer Bonaci to a minor league contract. |
| 07/08/18 | Boston Red Sox selected the contract of RHP Ryan Brasier from Pawtucket Red Sox. |
| 07/08/18 | Boston Red Sox transferred RHP Austin Maddox from the 10-day disabled list to the 60-day disabled list. Right shoulder strain. |
| 07/08/18 | Boston Red Sox recalled William Cuevas from Pawtucket Red Sox. |
| 07/08/18 | Boston Red Sox placed C Christian Vazquez on the 10-day disabled list. Right fifth finger fracture. |
| 07/08/18 | Boston Red Sox placed LHP Brian Johnson on the 10-day disabled list retroactive to July 5, 2018. Left hip inflammation. |
| 07/06/18 | Boston Red Sox signed RHP Chris Machamer. |
| 07/06/18 | Boston Red Sox signed RHP Chase Shugart. |
| 07/05/18 | Boston Red Sox signed free agent RHP Armando Acosta to a minor league contract. |
| 07/04/18 | Boston Red Sox activated RHP Tyler Thornburg from the 10-day disabled list. |
| 07/04/18 | Boston Red Sox optioned RHP William Cuevas to Pawtucket Red Sox. |
| 07/03/18 | Boston Red Sox signed free agent LF Kyle Wren to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent 3B Alex Zapete to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Luis Talavera to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent C Andy Pena to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Claudio Ochoa to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent OF Eduardo Lopez to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent OF Bryan Gonzalez to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent SS Axel James to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent OF Albert Feliz to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent SS Yulis Hernandez to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent SS Eddinson Paulino to a minor league contract. |
| 07/02/18 | Boston Red Sox transferred RHP Carson Smith from the 10-day disabled list to the 60-day disabled list retroactive to June 30, 2018. Right shoulder subluxation. |
| 07/02/18 | Boston Red Sox sent LHP Drew Pomeranz on a rehab assignment to Pawtucket Red Sox. |
| 07/02/18 | Boston Red Sox signed free agent SS Alixandri Alvarez to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Angel Bastardo to a minor league contract. |
| 07/02/18 | Boston Red Sox optioned RHP Justin Haley to Pawtucket Red Sox. |
| 07/02/18 | Boston Red Sox selected the contract of William Cuevas from Pawtucket Red Sox. |
| 07/02/18 | Boston Red Sox signed free agent RHP Gabriel Jackson to a minor league contract. |
| 07/02/18 | Boston Red Sox traded LF Lorenzo Cedrola to Cincinnati Reds for Future Considerations. |
| 07/02/18 | Boston Red Sox signed free agent SS Imanol Contreras to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Carlos Reyes to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent C Naysbel Marcano to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Richardson Jimenez to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Wilkelman Gonzalez to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Efren Diaz to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent RHP Andres Ortuno to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent CF Elio Prado to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent SS Noelberth Romero to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent OF Giancarlos Santana to a minor league contract. |
| 07/02/18 | Boston Red Sox signed free agent CF Eduardo Vaughan to a minor league contract. |