CREATE TABLE table_11521 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Leading scorer" TEXT, "Attendance" FLOAT, "Record" TEXT)

What was the score when the mavericks were visitors?
SELECT "Score" FROM table_11521 WHERE "Visitor" = 'mavericks'
SELECT "Score" FROM "table_11521" WHERE "Visitor" = 'mavericks'