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_1920271_3 ( partner VARCHAR, championship VARCHAR, outcome VARCHAR )

### Question ###
Who was her partner at the US Open and they were runner-up?

### Accurate SQL ###

SELECT partner FROM table_1920271_3 WHERE championship = "US Open" AND outcome = "Runner-up"