Tennis at the 2020 Summer Olympics – Men's singles

This will be the 16th (medal) appearance of the men's singles tennis event. The event has been held at every Summer Olympics where tennis has been on the program: from 1896 to 1924 and then from 1988 to the current program. Demonstration events were held in 1968 and 1984.

Each National Olympic Committee (NOC) can enter up to four players. Nations had been limited to four players in the event since the 2000 Games. Qualification for the men's singles is primarily through the ATP ranking list of 7 June 2021. An additional restriction is that players had to have been part of a nominated team for three Davis Cup events between 2013 and 2016 (with some exceptions). There are 64 quota places available for men's singles.[2]

The first 56 are assigned through the world ranking.[2]

There are six places available through continental qualification: four through continental tournaments (two in the 2019 Pan American Games, one in the 2018 Asian Games, and one in the 2019 African Games) and two through continent-restricted world ranking (one each for Europe and Oceania, which must come from NOCs with no other qualified competitors). The four continental tournament places take precedence over the world ranking, so the winners (João Menezes, Marcelo Tomás Barrios Vera, Denis Istomin, and Mohamed Safwat) are not counted toward the 56 (but are counted toward the four-per-nation limit).[2]

One place is guaranteed to the host nation. If Japan earns a place through the world ranking, the host guarantee is not used and a 57th place is added to the ranking.[2]

In an unusual career accomplishment qualification process, one spot is reserved for a former Olympic or Grand Slam champion that has not qualified through the current world rankings. The player must have won an Olympic gold medal or a Grand Slam singles final, be within the top 300 ranked players, and be from a nation that has not already qualified four players. If multiple players meet those criteria, the one with the most titles qualifies; if still tied, the highest ranked player qualifies. If no players meet those criteria, an additional place (57th or 58th) is added to the ranking.[2]

The competition is a single-elimination tournament with a bronze medal match. Matches are best-of-3 sets. A tiebreak is played in all sets reaching 6–6, including the last match of a set.

The competition is held over nine days, Saturday 24 July to Sunday 1 August. Times given are the start of tennis sessions, though the men's singles shares courts with other tennis events.[1]

All times are Japan Standard Time (UTC+9)