CREATE TABLE table_204_461 (id DECIMAL, "res." TEXT, "record" TEXT, "opponent" TEXT, "method" TEXT, "event" TEXT, "date" TEXT, "round" DECIMAL, "time" TEXT, "location" TEXT, "notes" TEXT)

zwicker faced tom hubert on october 15th , 2005 , who did he face before him ?
SELECT "opponent" FROM table_204_461 WHERE "date" < (SELECT "date" FROM table_204_461 WHERE "opponent" = 'tom hubert') ORDER BY "date" DESC LIMIT 1
SELECT "opponent" FROM "table_204_461" WHERE "date" < (SELECT "date" FROM "table_204_461" WHERE "opponent" = 'tom hubert') ORDER BY "date" DESC NULLS LAST LIMIT 1