user: Question: Who was the runner-up during the Mac Ice Classic?
Columns: ['Event', 'Date', 'Location', 'Winning skip', 'Runner-up skip']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Baden Masters', 'Sept. 7-9', 'Baden , Switzerland', 'Brad Gushue', 'Andy Kapp']
SQL:

assistant: SELECT "Runner-up skip" FROM "Table" WHERE "Event" = 'Mac Ice Classic';