Greg Joseph nailed a 37-yard field goal with two seconds left in overtime as the Browns edged the Ravens 12-9 in Cleveland.
Joseph missed a field goal and an extra-point in the game, but came through late to give the Browns a win.
Baker Mayfield threw for 342 yards, a touchdown and an interception for Cleveland, which is unbeaten at home this year at 2-0-and-1.
Justin Tucker went 3-of-4 on field goals for Baltimore, which could not find the end zone.
Joe Flacco finished with 298 yards passing and an interception as the Ravens dropped to 3-and-2.