The 2018 Davis Cup was the 107th edition of the Davis Cup, a tournament between national teams in men's tennis. It was sponsored by BNP Paribas.[1] In 2018, new rules were introduced for the Group I and II zonal events, with ties now being played as best-of-three sets over the course of two days.
Croatia won their second Davis Cup on indoor clay in the final match held at 25 November with a 3–1 win over France.[2]
The eight losing teams in the World Group first round ties and eight winners of the Zonal Group I final round ties will compete in the World Group play-offs for seeded spots in the 2019 Qualifying Round. Seedings are based on Davis Cup rankings as of 9 April 2018.
Format: Round-robin basis. The winner of Pool A will play-off against the runner-up of Pool B and the winner of Pool B will play-off against the runner-up of Pool A to determine which two nations will advance to Americas Zone Group II in 2019.
Format: Round-robin basis. One pool of 4 teams (Pool A) and one pool of 5 teams (Pool B). The winner of Pool A will play-off against the runner-up of Pool B and the winner of Pool B will play-off against the runner-up of Pool A to determine which two nations will be promoted to Asia/Oceania Zone Group II in 2019.
Format: Round-robin basis. Two pools of six teams. The winner of Pool A will play-off against the runner-up in Pool B and the winner of Pool B will play-off against the runner-up in Pool A to determine which two nations will be promoted to Asia/Oceania Zone Group III in 2019.
Format: Round-robin basis. Two pools of four teams at each venue. The winners of each pool play-off against each other to determine which nation will be promoted to Europe/Africa Zone Group II in 2019. Two promoted - one from each venue.
Format: Round-robin basis. One pool of four teams (Pool A) and one pool of five teams (Pool B). The winners of each pool play-off against each other to determine which two nations are promoted to Europe/Africa Zone Group II in 2019.