How many entrants did the events won by Frank Gary average?
CREATE TABLE table_name_21 (entrants INTEGER, winner VARCHAR)
SELECT AVG(entrants) FROM table_name_21 WHERE winner = "frank gary"
### Context: CREATE TABLE table_name_21 (entrants INTEGER, winner VARCHAR) ### Question: How many entrants did the events won by Frank Gary average? ### Answer: SELECT AVG(entrants) FROM table_name_21 WHERE winner = "frank gary"