user: ### NOW ANSWER:
Question: Who's the Runner(s)-up with a Winning score of −19 (71-63-63-64=261)?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Oct 2, 2011', 'SAS Championship', '−11 (66-69-70=205)', '1 stroke', 'John Huston , Jeff Sluman']
SQL:

assistant: SELECT "Runner(s)-up" FROM "Table" WHERE "Winning score" = '−19 (71-63-63-64=261)';