CREATE TABLE table_64924 ("Event" TEXT, "Date" TEXT, "Location" TEXT, "Winning skip" TEXT, "Runner-up skip" TEXT)

Who was the runner-up during the Mac Ice Classic?
SELECT "Runner-up skip" FROM table_64924 WHERE "Event" = 'mac ice classic'
SELECT "Runner-up skip" FROM "table_64924" WHERE "Event" = 'mac ice classic'