Question: Who lost when the Mariners played on September 12?
SQL: SELECT "Loss" FROM "2-12207755-7" WHERE "Opponent" = 'Mariners' AND "Date" = 'September 12';

Question: On September 7 what was the record?
SQL: SELECT "Record" FROM "2-12207755-7" WHERE "Date" = 'September 7';

Question: Who plays on the date September 29?
SQL: SELECT "Opponent" FROM "2-12207755-7" WHERE "Date" = 'September 29';