CREATE TABLE table_54206 ("Record" CLOB, "Date" CLOB, "Driver" CLOB, "Time" CLOB, "Speed/Avg. Speed" CLOB)

When was the race that set the record for the Izod Indycar Series?
SELECT "Date" FROM table_54206 WHERE "Record" = 'izod indycar series'
SELECT "Date" FROM "table_54206" WHERE "Record" = 'izod indycar series'