CREATE TABLE table_68535 ("Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Loss" TEXT, "Record" TEXT)

What was the date of the game that had a loss of Willis (0 1)?
SELECT "Date" FROM table_68535 WHERE "Loss" = 'willis (0–1)'
SELECT "Date" FROM "table_68535" WHERE "Loss" = 'willis (0–1)'