CREATE TABLE table_21022 ("Date" TEXT, "Time" TEXT, "ACC Team" TEXT, "Big Ten Team" TEXT, "Location" TEXT, "Television" TEXT, "Attendance" FLOAT, "Winner" TEXT, "Challenge Leader" TEXT)

Who won the game where the Challenge Leader is ACC (2-1)?
SELECT "Winner" FROM table_21022 WHERE "Challenge Leader" = 'ACC (2-1)'
SELECT "Winner" FROM "table_21022" WHERE "Challenge Leader" = 'ACC (2-1)'