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_26368963_2 ( under_13 VARCHAR, under_15 VARCHAR )

### Question ###
What is every value for Under-13 when value for Under-15 is Maria Elena Ubina?

### Accurate SQL ###

SELECT under_13 FROM table_26368963_2 WHERE under_15 = "Maria Elena Ubina"