CREATE TABLE "race_calendar" (
  "date" text,
  "series" text,
  "circuit" text,
  "city_state" text,
  "winner" text,
  "team" text
);

Question: What Date had a Series of ATCC Round 6?
SQL: SELECT "date" FROM "race_calendar" WHERE "series"='atcc round 6';

Question: Who was the Winner in the AMC Round 4 at Lakeside International Raceway?
SQL: SELECT "winner" FROM "race_calendar" WHERE "circuit"='lakeside international raceway' AND "series"='amc round 4';