Which track was used on September 12, 1981? 
CREATE TABLE table_22765887_1 (track VARCHAR, date VARCHAR)
SELECT track FROM table_22765887_1 WHERE date = "September 12, 1981"
### Context: CREATE TABLE table_22765887_1 (track VARCHAR, date VARCHAR) ### Question: Which track was used on September 12, 1981?  ### Answer: SELECT track FROM table_22765887_1 WHERE date = "September 12, 1981"