SELECT "Opponents in final" FROM table_25713 WHERE "Championship" = 'Zürich'
what are every one of the rivals in conclusive where title is z rich
CREATE TABLE table_25713 (
    "Outcome" text,
    "Year" real,
    "Championship" text,
    "Surface" text,
    "Partner" text,
    "Opponents in final" text,
    "Score in final" text
)