CREATE TABLE table_204_721 (id NUMBER, "rank" NUMBER, "wrestler" CLOB, "no. of reigns" NUMBER, "combined\ defenses" NUMBER, "combined\ days" NUMBER)

who is the only wrestler to have only 1 combined day ?
SELECT "wrestler" FROM table_204_721 WHERE "combined\ndays" = '1'
SELECT "wrestler" FROM "table_204_721" WHERE "combined\ndays" = '1'