CREATE TABLE table_77803 ("Date" CLOB, "Tournament" CLOB, "Winning score" CLOB, "Margin of victory" CLOB, "Runner-up" CLOB)

Who was the Japan open runner up?
SELECT "Runner-up" FROM table_77803 WHERE "Tournament" = 'japan open'
SELECT "Runner-up" FROM "table_77803" WHERE "Tournament" = 'japan open'