CREATE TABLE table_57711 ("Year" CLOB, "Division" CLOB, "League" CLOB, "Reg. Season" CLOB, "Playoffs" CLOB, "Open Cup" CLOB)

Tell me the league with a regular 1st season
SELECT "League" FROM table_57711 WHERE "Reg. Season" = '1st'
SELECT "League" FROM "table_57711" WHERE "Reg. Season" = '1st'