Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_99 ( laps INTEGER, driver VARCHAR, grid VARCHAR )

### Question ###
what is the laps when the driver is tony rolt and the grid is less than 10?

### Accurate SQL ###

SELECT SUM(laps) FROM table_name_99 WHERE driver = "tony rolt" AND grid < 10