CREATE TABLE table_204_330 (id DECIMAL, "finished" TEXT, "horse" TEXT, "jockey" TEXT, "trainer" TEXT, "owner" TEXT, "time / behind" TEXT)

which was the last horse to finish ?
SELECT "horse" FROM table_204_330 ORDER BY "finished" DESC LIMIT 1
SELECT "horse" FROM "table_204_330" ORDER BY "finished" DESC NULLS LAST LIMIT 1