CREATE TABLE table_39481 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

Who was the runnerup when the margin of victory was 1 stroke on jan 30, 2000?
SELECT "Runner(s)-up" FROM table_39481 WHERE "Margin of victory" = '1 stroke' AND "Date" = 'jan 30, 2000'
SELECT "Runner(s)-up" FROM "table_39481" WHERE "Date" = 'jan 30, 2000' AND "Margin of victory" = '1 stroke'