Penalties by the San Francisco 49ers was the main factor behind the Kansas City Chiefs’ 38-27 win in their home opener.

The Chiefs scored on all of their drives in the first half.

Kareem Hunt, running back, put the Chiefs up on the board first with a 1-yard rushing touchdown in the first quarter. He would get another 1-yard rushing touchdown in the first quarter.

After the first quarter, Jimmy Garoppolo, 49ers quarterback, passed to Kyle Juszczyk, full back, for a 35-yard touchdown.

Patrick Mahomes, quarterback, completed a 4-yard touchdown pass after scrambling from an intimidating 49ers defensive effort to Chris Conley, wide receiver. Demetrius Harris, wide receiver, caught 13-yard and 12-yard touchdowns from Mahomes in the second quarter.

Robbie Gould, 49ers kicker, would make a 39-yard field goal to end the first half.

To start off the second half, Garoppolo completed an 11-yard touchdown pass to Marquise Goodwin, wide receiver, but Gould missed the Point After Touchdown (PAT) attempt. Alfred Morris, 49ers running back, ran the ball into the end zone for a 3-yard rushing touchdown. Garoppolo then passed to George Kittle, tight end, for the two-point conversion.

After Garoppolo was injured on a rushing play, which tore his anterior cruciate ligament (ACL) according to Kyle Shanahan, head coach, C.J. Beathard, backup quarterback, came into the game in place of Garoppolo. He made a touchdown pass, but the play was nullified due to offensive holding by Juszczyk, which was later questioned by NFL officials. In order to not waste their field position, Gould made a 35-yard field goal.

Harrison Butker, kicker, made a 37-yard field goal to wrap up the game.

While the Chiefs did dominate, it was just as much, if not more, the penalties tallied by the 49ers that helped to result in the Chiefs’ win. San Francisco tallied 14 penalties and gave up 147 yards, compared to the six penalties for 48 yards given up by Kansas City.

Mahomes continued to set NFL records, this time setting the record for most touchdown passes in the first three games of the season with 13, dethroning Peyton Manning, previous record holder with 12 touchdown passes through the first three games of the season.

Also, Mahomes threw for 314 yards, 63 more yards than Garoppolo’s 251. For once this season, Mahomes had more incompletions (24 for 38) than the opposing quarterback. Garoppolo went 20 for 30.

Mahomes passed for three touchdowns while Garoppolo passed for two.

There is a significant drop in performance for Mahomes, but that is compared to his impressive week one and two games against the Los Angeles Chargers and the Pittsburgh Steelers. Still, one has to wonder if Mahomes will start cracking in the near future. All three of his touchdown passes were during the first half, and if he wants to win against tougher opponents, he will need to be able to generate offense after halftime.

The rushing offense from the Chiefs was particularly weak this game. Hunt, Watkins, Mahomes, Tyreek Hill, wide receiver; and Spencer Ware, running back, combined for 77 yards on 28 carries. Matt Breida, 49ers running back; Morris, Garoppolo, Raheem Mostart, running back; and Goodwin ran for 178 yards on 29 carries. Breida alone had more rushing yards than the Chiefs with 90 yards.

Kansas City seemed to improve a little bit on managing their offense this week. They recorded 31 first downs, five more than San Francisco; went 7 for 11 on third down conversions and ran 68 plays in total, which was five more than the 49ers’ 63. This is a good sign because running more offense is a good start to winning the game.

The Chiefs’ defense basically repeated themselves from last week: they kept up the pressure at first, this time lasting an entire half, then fizzled out for the rest of the game. Eric Berry, safety, sat out again this week due to concerns over a sore heel. No turnovers were recorded in this game by either side.