CINCINNATI (AP) -- Andy Dalton added to his streak of impressive games and big plays, keeping the Bengals unbeaten.
Dalton threw a 55-yard touchdown pass on the run - the type of throw he's rarely made in the past - and the Cincinnati Bengals remained perfect with a 36-21 victory over the Kansas City Chiefs on Sunday.
The Bengals (4-0) matched the third-best start in franchise history, two wins shy of the club record.
Dalton has been the thread throughout the wins, ascending to the top of the AFC passer list. He had another spot-on day, completing 17 of 24 for 321 yards with the long touchdown pass to Brandon Tate during a scramble.
Jeremy Hill ran for three touchdowns as the Bengals got off to a fast start and stayed ahead.
It was another rough day all around for Kansas City (1-3). Alex Smith was sacked five times, the Chiefs settled for Cairo Santos' club-record seven field goals, and the defense couldn't keep up with another one of the NFL's top passers.
The Chiefs have been beaten by Peyton Manning, Aaron Rodgers and Dalton in the past three weeks. In the past two, Rodgers and Dalton went a combined 41 of 59 for 654 yards with six TD passes.
Dalton came into the game trailing only Rodgers on the league's passer rating list. He's been significantly better at throwing on the run this season, and had another out of pocket big play at the start of the second half that put the Bengals in control.
He eluded the rush and threw a 55-yard touchdown pass to Tate, who made a diving catch at the 10-yard line, got up and dived into the end zone for a 21-12 lead.
Dalton got the Bengals off to another fast start. He completed all eight of his passes for 122 yards during a pair of 80-yard touchdown drives.
Smith was 31 of 45 for 386 yards, but was under pressure much of the time. The Chiefs came into the game with an NFL-high 14 sacks allowed.
The clincher was tight end Travis Kelce's fumble after a catch, with the ball returned to the Kansas City 5-yard line. Hill scored his second touchdown for a 29-15 lead.
Santos connected from 22, 40, 51, 34, 40, 29 and 51 yards, tying for the second-most field goals in a game in NFL history.
Chiefs cornerback Sean Smith returned from a three-game suspension for violating the league's substance abuse policy and had a tough time covering A.J. Green, who had six catches for 78 yards in the first half.