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

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'