Tennis Masters Series singles records and statistics
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In tennis, the ATP Masters events, currently known as ATP Tour Masters 1000 series, are an annual series of nine top-level tournaments featuring the elite men's players on the ATP Tour since 1990.[1][2] The Masters tournaments along with the Grand Slam tournaments and the year-end championships make up the most coveted titles on the annual ATP Tour calendar. In addition to the quadrennial Olympics, they are collectively known as the 'Big Titles'.[3]
Twelve tournaments have been held as Masters events so far, nine each year. They have been played on three different surfaces: hard outdoors: Indian Wells, Miami, Canada, Cincinnati and Shanghai; indoors: Stockholm (1991–94), Stuttgart (1998–2001), Madrid (2002–08) and Paris; clay: Hamburg (1990–2008), Monte Carlo, Madrid and Rome; carpet indoors: Stockholm (1990) and Stuttgart (1995–97).