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_name_28 (extra VARCHAR, result VARCHAR, tournament VARCHAR)
### Question:
What is the extra when the result is 4th at the NCAA Championships?
### Answer:
SELECT extra FROM table_name_28 WHERE result = "4th" AND tournament = "ncaa championships"