[1] The 2020 season was the first time Atlanta United FC finished worse than fourth in the Supporters' Shield table and failed to qualify for the MLS Cup playoffs.

During the 2020 offseason, Franco Escobar, Ezequiel Barco, and Eric Remedi acquired green cards, making them domestic players for MLS roster purposes.

[2] Win Draw Loss On March 12, 2020, the season entered a month-long suspension due to the COVID-19 pandemic in North America, following the cancellation of several matches.

On June 10, MLS announced that a bracket format dubbed the "MLS is Back Tournament" would begin July 8 at ESPN Wide World of Sports Complex in Walt Disney World, and end with the final on August 11.

Only trades involving draft picks and executed after the start of 2020 MLS SuperDraft are listed in the notes.