The 2020 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2020 tennis season. The 2020 ATP Tour calendar was composed of the Grand Slam tournaments (supervised by the International Tennis Federation (ITF)), the ATP Finals, the ATP Tour Masters 1000, the ATP Cup, the ATP Tour 500 series, the ATP Tour 250 series, and the Davis Cup (organised by the ITF). Also included in the 2020 calendar were the tennis events at the Next Generation ATP Finals, and the Laver Cup, neither of which distributed ranking points. Several tournaments were suspended or postponed due to the COVID-19 pandemic, including the Summer Olympics in Tokyo. On 17 June 2020, ATP issued the revised calendar for Tour resumption. Schedule This is the complete schedule of events on the 2020 calendar. January February March April–July No tournaments were played due to the COVID-19 pandemic (see affected tournaments below). August September October November Affected tournaments The COVID-19 pandemic affected many tournaments on both the ATP and WTA tours. Tournaments from 9 March to 21 August were either cancelled or postponed. The 2020 Summer Olympics were postponed to 2021 and the ATP rankings were also frozen over this period, with the last official rankings being released on March 16. The following tournaments were suspended or postponed due to the COVID-19 pandemic. Statistical information These tables present the number of singles (S), doubles (D), and mixed doubles (X) titles won by each player and each nation during the season, within all the tournament categories of the 2019 ATP Tour: the Grand Slam tournaments, the ATP Finals, the ATP Tour Masters 1000, the ATP Tour 500 series, and the ATP Tour 250 series. The players/nations are sorted by: Total number of titles (a doubles title won by two players representing the same nation counts as only one win for the nation); Cumulated importance of those titles (one Grand Slam win equalling two Masters 1000 wins, one undefeated ATP Finals win equalling one-and-a-half Masters 1000 win, one Masters 1000 win equalling two 500 events wins, one 500 event win equalling two 250 events wins); A singles > doubles > mixed doubles hierarchy; Alphabetical order (by family names for players). Titles won by player Titles won by nation Titles information The following players won their first main circuit title in singles, doubles or mixed doubles: Singles Ugo