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_28962227_1 (runners_up VARCHAR, winner VARCHAR)

### Question ###
How many runners-up were there when Joanne Wheatley won?

### Accurate SQL ###

SELECT COUNT(runners_up) FROM table_28962227_1 WHERE winner = "Joanne Wheatley"