Question: A tournament on which date has a margin of victory of 2 strokes and a par of −16?
SQL: SELECT "Date" FROM "2-10856203-2" WHERE "Margin of victory" = '2 strokes' AND "To par" = '−16';

Question: Who was the runner-up in the tournament that has a margin of victory of 2 strokes, and a To par of −16?
SQL: SELECT "Runner-up" FROM "2-10856203-2" WHERE "Margin of victory" = '2 strokes' AND "To par" = '−16';

Question: What was the to par of the tournament that had Ken Duke as a runner-up?
SQL: SELECT "To par" FROM "2-10856203-2" WHERE "Runner-up" = 'Ken Duke';

Question: What was the margin of victory when Brandt Snedeker was runner-up?
SQL: SELECT "Margin of victory" FROM "2-10856203-2" WHERE "Runner-up" = 'Brandt Snedeker';

Question: What is the date that has a winning score of 67-70-68-67=272?
SQL: SELECT "Date" FROM "2-10856203-2" WHERE "Winning score" = '67-70-68-67=272';