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_73438 ( "Conference" text, "Regular Season Winner" text, "Conference Player of the Year" text, "Conference Tournament" text, "Tournament Venue (City)" text, "Tournament Winner" text )

### Question ###
Who won the regular season when Maryland won the tournament?

### Accurate SQL ###

SELECT "Regular Season Winner" FROM table_73438 WHERE "Tournament Winner" = 'Maryland'