[2] Many tournaments were cancelled or postponed due to the COVID-19 pandemic, including the Tokyo Summer Olympics and the Wimbledon Championships.

[3][4][5][6][7] This is the complete schedule of events on the 2020 calendar, with player progression documented from the quarterfinals stage.

The players/nations are sorted by: The following players won their first main circuit title in singles, doubles, or mixed doubles: The following players defended a main circuit title in singles, doubles, or mixed doubles: The following players achieved their career high ranking in this season inside top 50 (in bold the players who entered the top 10 for the first time).

Rankings were frozen due to the COVID-19 pandemic from 16 March 2020 up until the resumption of the season on 3 August 2020.

Following is a list of notable players (winners of a main tour title, and/or part of the WTA rankings top 100 in singles or doubles, for at least one week; and wheelchair players) who announced their retirement from professional tennis, became inactive (after not playing for more than 52 weeks), or were permanently banned from playing, during the 2020 season:[20] Following are notable players who announced their comebacks after retirements during the 2020 WTA Tour season: Women's World Tennis circuit|1923]]