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_1172 ( "Nationality" text, "Player" text, "Year" real, "Wins" real, "Masters" text, "U.S. Open" text, "Open Ch." text, "PGA Ch." text )

### Question ###
What was the player's result at the U.S. Open of the player who finished 6th at the Open Ch?

### Accurate SQL ###

SELECT "U.S. Open" FROM table_1172 WHERE "Open Ch." = '6th'