The World Group play-offs were four ties which involved the losing nations of the World Group first round and the winning nations of the World Group II. Nations that won their play-off ties entered the 2011 World Group, while losing nations joined the 2011 World Group II.
Belgium vs. Estonia
Ukraine vs. Australia
Germany vs. France
Serbia vs. Slovakia
Note: Ana Ivanovic decided to withdraw from this tie in March due to her ongoing poor form.Ana Ivanovic decides to skip Fed Cup tie against Slovakia | Ana Ivanovic
References
See also Fed Cup structure