CREATE TABLE table_44012 ("Date" TEXT, "Series" TEXT, "Circuit" TEXT, "City / State" TEXT, "Winner" TEXT, "Team" TEXT)

Who was the winner for ASTC round 8?
SELECT "Winner" FROM table_44012 WHERE "Series" = 'astc round 8'
SELECT "Winner" FROM "table_44012" WHERE "Series" = 'astc round 8'