CREATE TABLE table_48233 ("Date" CLOB, "Series" CLOB, "Circuit" CLOB, "City / State" CLOB, "Winner" CLOB, "Team" CLOB)

WHAT IS THE WINNER WITH ATCC ROUND 6?
SELECT "Winner" FROM table_48233 WHERE "Series" = 'atcc round 6'
SELECT "Winner" FROM "table_48233" WHERE "Series" = 'atcc round 6'