CREATE TABLE table_13957 ("Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent in final" TEXT, "Score" TEXT, "Prize Money" TEXT)

What is the Score of the Pingguo Tournament?
SELECT "Score" FROM table_13957 WHERE "Tournament" = 'pingguo'
SELECT "Score" FROM "table_13957" WHERE "Tournament" = 'pingguo'