What is the average number of rounds for winner Rafael Cavalcante?
CREATE TABLE table_name_37 (round INTEGER, winner VARCHAR)
SELECT AVG(round) FROM table_name_37 WHERE winner = "rafael cavalcante"
### Context: CREATE TABLE table_name_37 (round INTEGER, winner VARCHAR) ### Question: What is the average number of rounds for winner Rafael Cavalcante? ### Answer: SELECT AVG(round) FROM table_name_37 WHERE winner = "rafael cavalcante"