January 02, 2020

Red Sox  sign Kevin Plawecki as a free agent

January 04, 2020

Red Sox  sign Trevor Hildenberger

January 10, 2020

Austin Brice traded from Marlins  to Red Sox 

January 15, 2020

Jeffrey Springs traded from Rangers  to Red Sox 

January 17, 2020

Red Sox  designate Travis Lakins for assignment

January 21, 2020

Travis Lakins traded from Red Sox  to Cubs 

January 23, 2020

Red Sox  sign Joey Meneses

January 28, 2020

Red Sox  designate Denyi Reyes for assignment

Red Sox  sign Mitch Moreland as a free agent

February 10, 2020

February 14, 2020

Red Sox  sign Kevin Pillar as a free agent

February 19, 2020

Red Sox  sign Jonathan Lucroy

March 05, 2020

Red Sox  sign Collin McHugh as a free agent

March 24, 2020

Red Sox  sign Yairo Munoz

June 28, 2020

Red Sox  place Chris Sale on the injured list

July 14, 2020

Red Sox  place Josh Taylor on the injured list

Red Sox  place Darwinzon Hernandez on the injured list

Red Sox  place Eduardo Rodriguez on the injured list

July 17, 2020

Red Sox  sign Zack Godley

July 29, 2020

Red Sox  designate Jonathan Lucroy for assignment

August 07, 2020

Red Sox  release John Andreoli

August 12, 2020

Red Sox  place Andrew Benintendi on the injured list

August 16, 2020

Red Sox  place Christian Arroyo on the injured list

August 19, 2020

Red Sox  designate Stephen Gonsalves for assignment

August 20, 2020

Red Sox  designate Christian Arroyo for assignment

August 21, 2020

August 26, 2020

Red Sox  release R.J. Alvarez

August 29, 2020

Red Sox  place Nathan Eovaldi on the injured list

August 30, 2020

Mitch Moreland traded from Red Sox  to Padres 

August 31, 2020

Red Sox  place Darwinzon Hernandez on the injured list

Kevin Pillar traded from Red Sox  to Rockies 

Josh Osich traded from Red Sox  to Cubs 

September 03, 2020

Red Sox  place Colten Brewer on the injured list

September 10, 2020

Red Sox  place Austin Brice on the injured list

Red Sox  place Zack Godley on the injured list

September 11, 2020

Red Sox  place Josh Taylor on the injured list

September 15, 2020

Red Sox  release Jonathan Lucroy

September 19, 2020

Red Sox  place Yairo Munoz on the injured list

September 25, 2020

Red Sox  place Domingo Tapia on the injured list

October 28, 2020

Collin McHugh became a free agent

Jackie Bradley became a free agent

November 01, 2020

Martin Perez became a free agent

November 20, 2020

Red Sox  designate Ryan Weber for assignment

November 25, 2020

Red Sox  designate Robert Stock for assignment

December 14, 2020

Red Sox  sign Hunter Renfroe as a free agent

December 23, 2020

Red Sox  sign Matt Andriese as a free agent