What round does Duncan Tappy drive in?
CREATE TABLE table_23293785_3 (sf_round INTEGER, driver VARCHAR)
SELECT MAX(sf_round) FROM table_23293785_3 WHERE driver = "Duncan Tappy"
### Context: CREATE TABLE table_23293785_3 (sf_round INTEGER, driver VARCHAR) ### Question: What round does Duncan Tappy drive in? ### Answer: SELECT MAX(sf_round) FROM table_23293785_3 WHERE driver = "Duncan Tappy"