CREATE TABLE table_21436373_6 (type_of_record VARCHAR, result_games VARCHAR)

Which type of record has result/games of 9 games (57,144 avg.)
SELECT type_of_record FROM table_21436373_6 WHERE result_games = "9 games (57,144 avg.)"
SELECT "type_of_record" FROM "table_21436373_6" WHERE "9 games (57,144 avg.)" = "result_games"