CREATE TABLE table_61212 ("Date" CLOB, "Series" CLOB, "Circuit" CLOB, "City / State" CLOB, "Winner" CLOB, "Team" CLOB)

Which circuit was the atcc round 7 at?
SELECT "Circuit" FROM table_61212 WHERE "Series" = 'atcc round 7'
SELECT "Circuit" FROM "table_61212" WHERE "Series" = 'atcc round 7'