CREATE TABLE table_75594 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

Who was the opponent for the match were the outcome was runner-up and the score was 5-7, 1-6?
SELECT "Opponent" FROM table_75594 WHERE "Outcome" = 'runner-up' AND "Score" = '5-7, 1-6'
SELECT "Opponent" FROM "table_75594" WHERE "Outcome" = 'runner-up' AND "Score" = '5-7, 1-6'