CREATE TABLE table_203_539 (id NUMBER, "year" NUMBER, "competition" CLOB, "venue" CLOB, "position" CLOB, "event" CLOB, "notes" NUMBER)

other than asian junior championships , what other time did they place 1st ?
SELECT "competition" FROM table_203_539 WHERE "competition" <> 'asian junior championships' AND "position" = 1
SELECT "competition" FROM "table_203_539" WHERE "competition" <> 'asian junior championships' AND "position" = 1