user: Question: When was the race that set the record for the IZOD IndyCar Series?
Columns: ['Record', 'Date', 'Driver', 'Time', 'Speed/Avg. Speed']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['NASCAR Sprint Cup Series', 'NASCAR Sprint Cup Series', 'NASCAR Sprint Cup Series', 'NASCAR Sprint Cup Series', 'NASCAR Sprint Cup Series']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Record" = 'IZOD IndyCar Series';