CREATE TABLE table_204_521 (id DECIMAL, "rank" DECIMAL, "name" TEXT, "nationality" TEXT, "time  ( hand ) " TEXT, "notes" TEXT)

which athlete had the fastest time ?
SELECT "name" FROM table_204_521 ORDER BY "time (hand)" LIMIT 1
SELECT "name" FROM "table_204_521" ORDER BY "time (hand)" NULLS FIRST LIMIT 1