CREATE TABLE table_61613 ("Opposing Teams" TEXT, "Against" FLOAT, "Date" TEXT, "Venue" TEXT, "Status" TEXT)

Where was the match on 10/11/2001 against 15?
SELECT "Venue" FROM table_61613 WHERE "Against" = '15' AND "Date" = '10/11/2001'
SELECT "Venue" FROM "table_61613" WHERE "Against" = '15' AND "Date" = '10/11/2001'