CREATE TABLE table_204_180 (id DECIMAL, "date" TEXT, "opponent#" TEXT, "rank#" TEXT, "site" TEXT, "result" TEXT, "attendance" DECIMAL)

what team did the badgers play after ohio state ?
SELECT "opponent#" FROM table_204_180 WHERE "date" > (SELECT "date" FROM table_204_180 WHERE "opponent#" = 'ohio state') ORDER BY "date" LIMIT 1
SELECT "opponent#" FROM "table_204_180" WHERE "date" > (SELECT "date" FROM "table_204_180" WHERE "opponent#" = 'ohio state') ORDER BY "date" NULLS FIRST LIMIT 1