CREATE TABLE table_9365 ("Date" TEXT, "Series" TEXT, "Circuit" TEXT, "City / State" TEXT, "Winner" TEXT, "Team" TEXT)

What is Winner, when Circuit is Mallala Motor Sport Park, and when Series is ASTC Round 6?
SELECT "Winner" FROM table_9365 WHERE "Circuit" = 'mallala motor sport park' AND "Series" = 'astc round 6'
SELECT "Winner" FROM "table_9365" WHERE "Circuit" = 'mallala motor sport park' AND "Series" = 'astc round 6'