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_81 (opponent VARCHAR, round VARCHAR, record VARCHAR)
### Question:
Who is the opponent in the fight of 1 round when the record is 18-7?
### Answer:
SELECT opponent FROM table_name_81 WHERE round = "1" AND record = "18-7"