1 Wild cards who lose at their first round matches at Grand Slam and ATP World Tour Masters 1000 events are not awarded ranking points.

[11] 2 Only applicable to the Wimbledon Championships, which is the only tournament in the entire ATP World Tour to feature a qualifying stage for doubles.

[12] 2 For the first round only, any player who competes in a live rubber, without a win, receives 10 ranking points for participation.

[12] 4 Performance bonus awarded to a singles player who wins 8 live matches in a calendar year.

[12] Following is a list of notable players (winners of a main tour title, and/or part of the ATP rankings top 100 (singles) or top 50 (doubles) for at least one week) 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 2013 season: Following are notable players who will comeback after retirements during the 2013 ATP Tour season: