CREATE TABLE table_15462 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "To par" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

When John Senden was the runner-up, what was the To Par?
SELECT "To par" FROM table_15462 WHERE "Runner(s)-up" = 'john senden'
SELECT "To par" FROM "table_15462" WHERE "Runner(s)-up" = 'john senden'