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_21428 ( "Season" real, "Series" text, "Team" text, "Races" real, "Wins" real, "Poles" real, "FLaps" real, "Podiums" real, "Points" real, "Position" text )

### Question ###
How many poles did the player have during the Formula BMW Pacific race?

### Accurate SQL ###

SELECT MAX("Poles") FROM table_21428 WHERE "Series" = 'Formula BMW Pacific'