CREATE TABLE table_45098 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

What is Date, when Winning Score is 14 (68-68-67-71=274)?
SELECT "Date" FROM table_45098 WHERE "Winning score" = '−14 (68-68-67-71=274)'
SELECT "Date" FROM "table_45098" WHERE "Winning score" = '−14 (68-68-67-71=274)'