ATP Masters 1000

Sometimes there are so many tennis tournaments, we might not know which is which and why some seems to be more important or glamorous than the rest. The ATP Masters 1000 is a series of tennis tournanents which often big names are involved. The ATP Masters 1000 is also formerly known as other names such as Mercedes-Benz Super 9, Tennis Master Series and ATP Master Series.

This series of tennis tournaments is mainly for the professional male tennis players and the points scored in tournaments are more than the regular ones for World ranking. Again, it is not as much as the Grand Slam or ATP World Tours (another tennis tournament).

Any guess why is it called 1000? Hint: The tournament points.