What is the lowest tier for a postseason result of quarterfinalist?
CREATE TABLE table_name_68 (tier INTEGER, postseason VARCHAR)
SELECT MIN(tier) FROM table_name_68 WHERE postseason = "quarterfinalist"
### Context: CREATE TABLE table_name_68 (tier INTEGER, postseason VARCHAR) ### Question: What is the lowest tier for a postseason result of quarterfinalist? ### Answer: SELECT MIN(tier) FROM table_name_68 WHERE postseason = "quarterfinalist"