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_68 (runner_s__up VARCHAR, tournament VARCHAR)
### Question:
Who is the runner-up at the Chicago challenge?
### Answer:
SELECT runner_s__up FROM table_name_68 WHERE tournament = "chicago challenge"