The 2018 Davis Cup World Group play-offs were held from 14 to 16 September.
They were the main play-offs of the 2018 Davis Cup.
The winners of the playoffs advance as seeded to the 2019 Davis Cup qualifying round.
Date: 14–16 September 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 2019 qualifying round.
[1] Davis Cup Tennis 2018: Final Scores and Results from Round 1 Bracket