When has an Opponent of at Seattle mariners?
CREATE TABLE table_name_75 (date VARCHAR, opponent VARCHAR)
SELECT date FROM table_name_75 WHERE opponent = "at seattle mariners"
### Context: CREATE TABLE table_name_75 (date VARCHAR, opponent VARCHAR) ### Question: When has an Opponent of at Seattle mariners? ### Answer: SELECT date FROM table_name_75 WHERE opponent = "at seattle mariners"