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_name_89 (winner VARCHAR, _number_of_weeks VARCHAR, third_place VARCHAR)

### Question ###
Who won when robert kudelski finished with under 13 weeks?

### Accurate SQL ###

SELECT winner FROM table_name_89 WHERE _number_of_weeks < 13 AND third_place = "robert kudelski"