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_203_726 ( id number, "year" number, "national champion" text, "score" text, "runner-up" text, "host or site" text )

### Question ###
in total , how many times has stanford won the national championship ?

### Accurate SQL ###

SELECT COUNT(*) FROM table_203_726 WHERE "national champion" = 'stanford'