CREATE TABLE table_34802 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner-up" TEXT)

Who was the runner-up on 5 aug 1990?
SELECT "Runner-up" FROM table_34802 WHERE "Date" = '5 aug 1990'
SELECT "Runner-up" FROM "table_34802" WHERE "Date" = '5 aug 1990'