Table: usac_race_results
Columns: rnd
date
length
race_name
track
location
pole_position
winning_driver

Question: What length was won by Roger McCluskey?
SQL: SELECT "length" FROM usac_race_results WHERE "winning_driver" = 'Roger McCluskey'

Question: What rounds did Phoenix International Raceway host?
SQL: SELECT "rnd" FROM usac_race_results WHERE "track" = 'Phoenix International Raceway'

Question: What are the lengths hosted by Pocono International Raceway?
SQL: SELECT "length" FROM usac_race_results WHERE "track" = 'Pocono International Raceway'

Question: What lengths did Phoenix International Raceway host?
SQL: SELECT "length" FROM usac_race_results WHERE "track" = 'Phoenix International Raceway'