The 2018 Fed Cup was expected to feature some structural changes, including a 16-team World Group and the introduction of a Final Four event at a neutral, predetermined location.
[2] In one of the biggest shocks in the tournament history, Russia was demoted to the Zonal Groups for the first time in two decades, after consecutive losses to Slovakia and Latvia.
Location: Club Internacional de Tenis, Asunción, Paraguay (clay) Dates: 7–10 February
Venue 1: Club Deportivo La Asunción, Metepec, Mexico (hard) Venue 2: Centro Nacional de Tenis de la FET, Guayaquil, Ecuador (clay) Dates: 20–23 June and 18–21 July
Venue: Tallink Tennis Centre, Tallinn, Estonia (indoor hard) Dates: 7–10 February