Tennis Masters Series

The ATP World Tour Masters 1000 (previously known as the ATP Championship Series, Single-Week , ATP Super 9 , Tennis Masters Series , and ATP Masters Series) is the third highest tier of men's tennis tournament after the four Grand Slam tournaments and ATP World Tour Finals.

Results in ATP Masters 1000 events earn players more world ranking points than regular tournaments, though not as many as Grand Slam events or the year-end ATP World Tour Finals. Up until 2007, most Masters Series finals were contested as best of five-set matches. Currently, all Masters Series events are decided in best of three-set matches.

Rafael Nadal and Novak Djokovic hold the record for the most singles titles with 30 each since the Masters series began in 1990. The Bryan Brothers have won a record 36 doubles titles, all as a team. No man has ever won all 9 singles titles in his career, with Novak Djokovic winning 8, Andre Agassi, Roger Federer, Rafael Nadal and Andy Murray each winning 7. However, in doubles, Daniel Nestor and the Bryan Brothers (Bob and Mike) have each won all 9 titles throughout their careers. Novak Djokovic holds the record for 6 singles titles in a year (2015). In doubles, the Bryans have won 6 titles in a single year once (2014) and 5 titles in a single year twice (2007 and 2013).

1990–1995

ATP Championship Series, Single-Week

1996–1999

ATP Super 9

2000–2003

Tennis Masters Series

2004–2008

ATP Masters Series

2009–current

ATP World Tour Masters 1000

(since 1990.)

After the Paris Masters 2016, since the 2009 changes the "big four" i.e. Roger Federer, Rafael Nadal, Novak Djokovic & Andy Murray combined have won 64 out of 72 ATP Masters 1000 finals, and have a current streak of 36 consecutive finals appearances.

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