CREATE TABLE table_64925 ("Event" TEXT, "Date" TEXT, "Location" TEXT, "Winning skip" TEXT, "Runner-up skip" TEXT)

What's the date when Stu Harris was the Runner-up?
SELECT "Date" FROM table_64925 WHERE "Runner-up skip" = 'stu harris'
SELECT "Date" FROM "table_64925" WHERE "Runner-up skip" = 'stu harris'