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_name_20 ( runner_up VARCHAR, attendance VARCHAR, venue VARCHAR, result VARCHAR )

### Question ###
Who was runner-up at Berlin when the result was 2-0 with 100,000 fans in attendance?

### Accurate SQL ###

SELECT runner_up FROM table_name_20 WHERE venue = "berlin" AND result = "2-0" AND attendance = "100,000"