CREATE TABLE table_204_554 (id DECIMAL, "rank" DECIMAL, "name" TEXT, "nation" TEXT, "time" TEXT, "speed" DECIMAL, "note" TEXT)

which is the last russian to be ranked ?
SELECT "name" FROM table_204_554 WHERE "nation" = 'russia' ORDER BY "rank" DESC LIMIT 1
SELECT "name" FROM "table_204_554" WHERE "nation" = 'russia' ORDER BY "rank" DESC NULLS LAST LIMIT 1