CREATE TABLE table_name_75 (date VARCHAR2, opponent VARCHAR2, record VARCHAR2)

What was the game of the game against the White Sox with a record of 81-48?
SELECT date FROM table_name_75 WHERE opponent = "white sox" AND record = "81-48"
SELECT "date" FROM "table_name_75" WHERE "81-48" = "record" AND "opponent" = "white sox"