The 2016 Davis Cup was the 105th edition of the Davis Cup, a tournament between national teams in men's tennis. It was sponsored by BNP Paribas. From this season's tournament the deciding set of each match would be settled by a tiebreak at 6 games all rather than playing an advantage set until a player or a team were two games clear.[1][2]Argentina won their first Davis Cup title, after 4 runner-up finishes, defeating Croatia in the final. Federico Delbonis defeated Ivo Karlović in the final match to give Argentina its first Davis Cup title,[3] after a comeback from Juan Martín del Potro against Marin Čilić in the fourth match.[4]
The eight losing teams in the World Group first round ties and eight winners of the Zonal Group I final round ties competed in the World Group play-offs for spots in the 2017 World Group.
Format: Round-robin basis. Two pools of four and five teams, respectively (Pools A and B). The winner of each pool plays off against the runner-up of the other pool to determine which two nations are promoted to Americas Zone Group II in 2017.
Seeding: The seeding was based on the Davis Cup Rankings of 7 March 2016 (shown in parentheses below).
Format: Round-robin basis. Two pools of four and five teams, respectively (Pools A and B). The winner of each pool plays off against the runner-up of the other pool to determine which two nations are promoted to Asia/Oceania Zone Group II in 2017.
Seeding: The seeding was based on the Davis Cup Rankings of 7 March 2016 (shown in parentheses below).
Format: Round-robin basis. Two pools of four and five teams, respectively (Pools A and B). The winner of each pool plays off against the runner-up of the other pool to determine which two nations are promoted to Asia/Oceania Zone Group III in 2017.
Seeding: The seeding was based on the Davis Cup Rankings of 7 March 2016 (shown in parentheses below).
Format: Round-robin basis. Four pools of four teams (Pools A, B, C and D). The winners of each pool play-off against each other to determine which two nations are promoted to Europe/Africa Zone Group II in 2017.
Seeding: The seeding was based on the Davis Cup Rankings of 30 November 2015 (shown in parentheses below).
Format: Round-robin basis. Two pools of five teams (Pools A and B). The winner of each pool plays off against the runner-up of the other pool to determine which two nations are promoted to Europe/Africa Zone Group II in 2017.
Seeding: The seeding was based on the Davis Cup Rankings of 7 March 2016 (shown in parentheses below).