CREATE TABLE table_203_309 (id DECIMAL, "team" TEXT, "winners" DECIMAL, "runners-up" DECIMAL, "years won" TEXT, "years lost" TEXT)

which team was the first to have five winners ?
SELECT "team" FROM table_203_309 WHERE "winners" = 5 ORDER BY "years won" LIMIT 1
SELECT "team" FROM "table_203_309" WHERE "winners" = 5 ORDER BY "years won" NULLS FIRST LIMIT 1