CREATE TABLE table_14805 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

Name the date with margin of victory of 1 stroke and tournament of legend financial group classic
SELECT "Date" FROM table_14805 WHERE "Margin of victory" = '1 stroke' AND "Tournament" = 'legend financial group classic'
SELECT "Date" FROM "table_14805" WHERE "Margin of victory" = '1 stroke' AND "Tournament" = 'legend financial group classic'