In tennis, the ATP Masters is an annual series of nine top-level tennis tournaments featuring the elite men's tennis players on the ATP Tour. The tournaments are important for the top players on the professional circuit as the series constituted the most prestigious tournaments in men's tennis after the four Grand Slam events. The Masters series along with the Grand Slam tournaments, the ATP Finals championship and the Olympic Games are considered the top-tier events of men's tennis, referred to by the ATP as the "Big Titles".
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; hard indoors: Stockholm (1991âÂÂ94), Stuttgart (1998âÂÂ2001), Madrid (2002âÂÂ08) and Paris; clay: Hamburg (1990âÂÂ2008), Monte Carlo, Madrid and Rome; carpet indoors: Stockholm (1990), Stuttgart (1995âÂÂ97) and Paris (1990âÂÂ2006).
<noinclude>The achievement of winning all of the nine active ATP Masters tournaments over the course of a player's career.
<small>Player won all current nine Masters series events and ATP's now defunct Hamburg (clay) and Madrid (hard indoor) Masters events played in his career.</small>
<section begin=Title leader/> <section end=Title leader/>
Statistics correct as of 2025 Paris. To avoid double counting, they should be updated at the conclusion of a tournament or when the player's participation has ended.
Note: Titles, won by a team of players from same country, count as one title, not two.
<div style="overflow-x:auto">
</div>
ATP Tour
WTA Tour