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_20 (start VARCHAR, qual VARCHAR)
### Question:
What was the start of the competitor with a qualifying time of 84.300?
### Answer:
SELECT start FROM table_name_20 WHERE qual = "84.300"