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_11621915_1 ( winner VARCHAR, purse__$__ VARCHAR, date VARCHAR )

### Question ###
what's the winner with purse( $ ) value of bigger than 964017.2297960471 and date value of may 28

### Accurate SQL ###

SELECT winner FROM table_11621915_1 WHERE purse__$__ > 964017.2297960471 AND date = "May 28"