CREATE TABLE table_70348 ("Outcome" TEXT, "Date" TEXT, "Surface" TEXT, "Partner" TEXT, "Opponents in final" TEXT, "Score in final" TEXT)

Who were the opponents in the match or matches that ended in a score of W/O?
SELECT "Opponents in final" FROM table_70348 WHERE "Score in final" = 'w/o'
SELECT "Opponents in final" FROM "table_70348" WHERE "Score in final" = 'w/o'