CREATE TABLE table_204_835 (id DECIMAL, "rank" DECIMAL, "lane" DECIMAL, "name" TEXT, "nationality" TEXT, "time" TEXT, "notes" TEXT)

which competitor was the last to place ?
SELECT "name" FROM table_204_835 ORDER BY "rank" DESC LIMIT 1
SELECT "name" FROM "table_204_835" ORDER BY "rank" DESC NULLS LAST LIMIT 1