text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_22673872_1 (rnd INTEGER, winning_driver VARCHAR, track VARCHAR)
  ### Question:
  In what round did Al Unser win at Wisconsin State Fair Park Speedway? 
  ### Answer:
  SELECT MIN(rnd) FROM table_22673872_1 WHERE winning_driver = "Al Unser" AND track = "Wisconsin State Fair Park Speedway"