The ATP Tour Masters 1000, commonly known as the ATP Masters 1000 or ATP 1000, is a series of nine elite men’s professional tennis tournaments on the ATP Tour, ranking just below the four Grand Slam events in prestige. Organized by the Association of Tennis Professionals (ATP), each Masters 1000 event awards 1,000 ranking points to the singles champion and features top-ranked players competing in knockout singles and doubles draws across international venues — for example, the Paris Masters is staged at Paris La Défense Arena in late October/early November.