Siemian passed for 249 yards and two touchdowns without an interception, and Hill completed both of his passes for 33 yards.
Jaylen Waddle caught eight passes for 83 yards for Miami, which got a touchdown run from Myles Gaskin and a scoring catch from Mack Hollins.
Giants 23, Raiders 16 Xavier McKinney returned an interception 41 yards for a touchdown early in the second half and picked off another errant throw by Derek Carr late as the New York Giants defeated the Las Vegas Raiders 23-16.