Question: What year was Clark-Smith Autos, Phoenix, AZ in 2nd place?
SQL: SELECT "Year" FROM "2-18618672-1" WHERE "2nd Place Team" = 'Clark-Smith Autos, Phoenix, AZ';

Question: Who was the 2nd place team when the location was Tulsa, OK before 1956?
SQL: SELECT "2nd Place Team" FROM "2-18618672-1" WHERE "Host Location" = 'Tulsa, OK' AND "Year" < 1956.0;