CREATE TABLE table_name_66 (runner_up VARCHAR, year VARCHAR, champion VARCHAR)

Which runner-up placed in a year prior to 2006 and whose Champion was Elon?
SELECT runner_up FROM table_name_66 WHERE year < 2006 AND champion = "elon"
SELECT "runner_up" FROM "table_name_66" WHERE "champion" = "elon" AND "year" < 2006