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_91 (win__percentage INTEGER, span VARCHAR, lost VARCHAR)
### Question:
What is the Win % in the Span of 2011–2013 with a Lost of less than 1?
### Answer:
SELECT AVG(win__percentage) FROM table_name_91 WHERE span = "2011–2013" AND lost < 1