user: Question: When was the Pre-season game record achieved?
Columns: ['Type of Record', 'Attendance', 'Date/Year', 'Stadium', 'Result/Games']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Pre-season game', 32003.0, 'Thurs 06/20/13', 'Mosaic Stadium at Taylor Field', 'Calgary 24 @ Saskatchewan 23']
SQL:

assistant: SELECT "Date/Year" FROM "Table" WHERE "Type of Record" = 'Pre-season game';