CREATE TABLE table_70356 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Location" CLOB)

Which event led to a 4-0 record?
SELECT "Event" FROM table_70356 WHERE "Record" = '4-0'
SELECT "Event" FROM "table_70356" WHERE "Record" = '4-0'