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_21 ( gold VARCHAR, place VARCHAR )

### Question ###
Who won gold when the world championships were held in Phoenix?

### Accurate SQL ###

SELECT gold FROM table_name_21 WHERE place = "phoenix"