Grand slam title winners Naomi Osaka, Iga Swiatek and Emma Raducanu have all won their singles matches in Billie Jean King Cup qualifying ties.
In Tokyo, Osaka hit 15 aces and put Japan a step away from reaching the BJK Cup Finals with a 6-2 7-6 (7-5) win over Kazakhstan's Yulia Putintseva.
It was the four-time grand slam champion's first match in the teams competition since February 2020.
Osaka, back on tour after becoming a mother last July, saved all three break points she faced and compiled a 31-16 edge in winners.
Her win on an indoor hardcourt in Tokyo followed Nao Hibino's 6-1 6-0 victory over Anna Danilina and gave Japan a 2-0 lead in the best-of-five-match qualifying round.
A total of 16 nations are involved in qualifiers, with the winners advancing to the Billie Jean King Cup Finals in Seville, Spain, in November.
Those eight teams will join defending champions Canada, 2023 runners-up Italy, hosts Spain and wild-card selections the Czech Republic in the 12-country Finals field.
The first team to move out of the qualifying round was Australia, who eliminated Mexico in Brisbane on Saturday, when Taylah Preston scored a crushing 6-1 6-1 win over Marcela Zacarias to make the overall score 3-0.
Preston's win followed singles victories on Friday for Arina Rodionova and Daria Saville.
Australia, runners-up twice in the past five years, are seeking their first title since 1974.
In other action, No.1-ranked Swiatek and Poland went ahead 2-0 in Switzerland, 2021 US Open champion Raducanu helped Britain finish day one tied 1-1 with France, the US led Belgium 2-0, Ukraine won both matches against Romania, Germany were ahead of hosts Brazil 2-0, and Slovakia were up 2-0 against visiting Slovenia.