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_53821 ( "Date" text, "Tournament" text, "Winning score" text, "Margin of victory" text, "Runner(s)-up" text )

### Question ###
On the Date of 4 Oct 2009, who was the Runner(s)-up?

### Accurate SQL ###

SELECT "Runner(s)-up" FROM table_53821 WHERE "Date" = '4 oct 2009'