CREATE TABLE table_24123 ("Game" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Black Knights points" FLOAT, "Opponents" FLOAT, "Record" CLOB)

Name the date for result loss for duke
SELECT "Date" FROM table_24123 WHERE "Result" = 'Loss' AND "Opponent" = 'Duke'
SELECT "Date" FROM "table_24123" WHERE "Opponent" = 'Duke' AND "Result" = 'Loss'