CREATE TABLE table_203_271 (id DECIMAL, "date" TEXT, "series" TEXT, "circuit" TEXT, "city / state" TEXT, "winner" TEXT, "team" TEXT, "car" TEXT, "report" TEXT)

mark skaife was the winnter of atcc round 1 , but what was the name of his team ?
SELECT "team" FROM table_203_271 WHERE "series" = 'atcc round 1' AND "winner" = 'mark skaife'
SELECT "team" FROM "table_203_271" WHERE "series" = 'atcc round 1' AND "winner" = 'mark skaife'