CREATE TABLE table_47758 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" CLOB)

On what Date was the Result of the game W 30 15?
SELECT "Date" FROM table_47758 WHERE "Result" = 'w 30–15'
SELECT "Date" FROM "table_47758" WHERE "Result" = 'w 30–15'