Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_203_439 ( id number, "pos." number, "rider" text, "semi-final points" number, "final points" number, "final heats" text, "total points" number )

### Question ###
their final points is equal to 15

### Accurate SQL ###

SELECT "rider" FROM table_203_439 WHERE "final points" = 15