Table: fighter_record_6
Columns: res
record
opponent
method
event
round
time
location

Question: What's the total number of rounds with a win result at the sf 5: stadium event?
SQL: SELECT COUNT("round") FROM fighter_record_6 WHERE "res" = 'win' AND "event" = 'sf 5: stadium'

Question: What location was fábio maldonado the opponent at?
SQL: SELECT "location" FROM fighter_record_6 WHERE "opponent" = 'fábio maldonado'