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_13643320_2 ( gto_winning_team VARCHAR, gtu_winning_team VARCHAR )

### Question ###
Who was the GTO winner of the round that ended with Chris Cord becoming the GTU winner?

### Accurate SQL ###

SELECT gto_winning_team FROM table_13643320_2 WHERE gtu_winning_team = "Chris Cord"