Question: Who is the round winner when entrant is Craven Mild Racing?
SQL: SELECT "Round winner" FROM "1-19886463-1" WHERE "Entrant" = 'Craven Mild Racing';

Question: Who is the round winner of the Wanneroo Park circuit?
SQL: SELECT "Round winner" FROM "1-19886463-1" WHERE "Circuit" = 'Wanneroo Park';

Question: Which circuit has Two heats as the format?
SQL: SELECT "Circuit" FROM "1-19886463-1" WHERE "Format" = 'Two heats';