CREATE TABLE table_61210 ("Date" TEXT, "Series" TEXT, "Circuit" TEXT, "City / State" TEXT, "Winner" TEXT, "Team" TEXT)

Which team won at the symmons plains raceway?
SELECT "Team" FROM table_61210 WHERE "Circuit" = 'symmons plains raceway'
SELECT "Team" FROM "table_61210" WHERE "Circuit" = 'symmons plains raceway'