CREATE TABLE table_203_539 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "venue" TEXT, "position" TEXT, "event" TEXT, "notes" DECIMAL)

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