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_52800 ( "Team" text, "Played" real, "Drawn" real, "Lost" real, "Against" real, "Points Diff" real, "Points" real )

### Question ###
I want the lowest points diff for against being less than 578 and lost being 15 and points more than 26

### Accurate SQL ###

SELECT MIN("Points Diff") FROM table_52800 WHERE "Against" < '578' AND "Lost" = '15' AND "Points" > '26'