CREATE TABLE table_2544694_3 (indonesia_super_series_2008 VARCHAR(255), runner_up VARCHAR(255))
Which series occurred in which the semi-finalist was runner-up and the 7800.00 was 6420.00?
    
SQL: SELECT indonesia_super_series_2008 FROM table_2544694_3 WHERE runner_up = "Semi-Finalist" AND 780000 = "6420.00"