OAKLAND, Calif. — Patrick Mahomes and the dynamic Kansas City Chiefs offense got all of the production they needed in a breathtaking second quarter.

Mahomes bounced back from the first scoreless opening quarter of his career in the regular season by throwing four touchdown passes in a near-perfect second period that led the Chiefs to a 28-10 victory over the Oakland Raiders on Sunday.

The Raiders (1-1) held Mahomes in check for the opening 15 minutes and kept him off the scoreboard in the second half, but it didn't matter because he carved up an overmatched defense with big play after big play in the second quarter for the Chiefs (2-0).

"We were just hitting on the plays," Mahomes said. "We stayed with the same game plan, called the same plays. We hit on them in the second quarter and missed them in the other parts of the game. We had a great quarter. But as an offense there was too much sloppiness. We weren't as efficient as we usually are."

Mahomes didn't take long to get started in the second quarter, finding Demarcus Robinson open on a blown coverage for a 44-yard touchdown pass on the first play in the second quarter. He didn't slow down from there.

After the Raiders opted to punt on a fourth-and-1 near midfield, Mahomes and the Chiefs marched 95 yards and scored when Mahomes found rookie Mecole Hardman on a 42-yard deep strike for his first career catch to give Kansas City a 14-10 lead.

The Chiefs didn't stop there with Mahomes connecting on two more long TD passes in the final two minutes of the half, a 27-yarder to Travis Kelce and a 39-yarder to Robinson as the absence of injured star Tyreek Hill did little to slow Kansas City.

"That's just what we do," Robinson said.

Mahomes finished 30 for 44 for 443 yards. Robinson had six catches for 172 yards and two scores and Kelce had seven catches for 107 yards and a TD to give the Chiefs their ninth win in the past 10 meetings in this long-time rivalry.

The Raiders had broken out to a 10-0 lead with a field goal on the opening drive and a 4-yard TD pass to Tyrell Williams later in the first quarter. But Derek Carr also threw an interception in the end zone on a pass to Williams in the third quarter and the Raiders didn't score over the final three periods.

"They made some plays, a barrage of plays, in about a five-minute period," Raiders coach Jon Gruden said. "It really turned the game around."

BY THE NUMBERS

Mahomes' 278 yards passing in the second quarter were the most for a player in any quarter since Drew Brees had 294 in the fourth period against Atlanta on Nov. 9, 2008. Mahomes ended the quarter with a bang, with his last five pass attempts each going for at least 27 yards, with TDs to Hardman, Kelce and Robinson. The streak extended with a 28-yarder to Robinson on the first play of the third quarter before Mahomes finally threw an incompletion.

RECORD SETTER

Carr became the Raiders' career passing leader on a 16-yard pass to Darren Waller in the second quarter, breaking the mark of 19,078 set by Hall of Famer Ken Stabler. Carr finished the day 23 for 38 for 198 yards with one TD and two interceptions. He has 19,196 yards in his career.

GOODBYE DIRT

This is likely the final NFL game ever played with infield dirt on the field with the Raiders next home game not until after the end of the World Series and the team set to move to Las Vegas next year. The Coliseum is the last stadium that hosts both NFL and baseball games and has special meaning to Mahomes, whose father Patrick Mahomes Sr. pitched here exactly 24 years ago, two days before the younger Mahomes was born.

"It was really cool," Mahomes said of playing on the same dirt his father did.

INJURIES

Chiefs: LT Eric Fisher left on the opening drive after reinjuring his groin that he hurt in practice on Friday. Cam Erving replaced him. ... RB Damien Williams (bruised knee) and RB LeSean McCoy (ankle) also got hurt, but those injuries are not believed to be serious.

Raiders: Returner Dwayne Harris injured his left ankle covering a punt in the second quarter and didn't return. ... RT Trent Brown left in the fourth quarter with a sore knee.

UP NEXT

Chiefs: host Baltimore in home opener Sunday.

Raiders: begin a long stretch away from home at Minnesota on Sept. 22. Oakland won't return to the Coliseum until Nov. 3, with four road games, a bye and a "home" game against Chicago in London on Oct. 6.

Raiders' defense torched by Mahomes in 2nd-quarter barrage

OAKLAND, Calif. — Adding speed to the defense to match up with Kansas City's dynamic playmakers was a priority this offseason for the Oakland Raiders.

For one dizzying stretch in the second quarter the improved defense couldn't catch up, leading to four long touchdown passes by Patrick Mahomes that sent Oakland to a 28-10 loss to Kansas City on Sunday.

"He was the MVP for a reason," Raiders cornerback Daryl Worley said. "He made some hell of a (good) throws. We've got to be better in situations like that and be able to make those plays on the ball."

The Raiders started fast, forcing punts on the opening two drives for the first scoreless opening quarter of Mahomes' 19 career starts. They finished OK by keeping the Chiefs off the scoreboard in the second half for the first time in Mahomes' career as well.

The second quarter was a thing of nightmares as Chiefs receivers burned past defenders, exploited blown coverages and capitalized when Mahomes was able to extend plays in the pocket.

It added up to 278 yards passing — the most in any quarter in nearly 11 years — the four touchdowns, and one stretch that included five straight attempts that went for at least 27 yards. Three of those went for touchdowns.

"We had a breakdown in one coverage, I know that, but a couple of those were just incredible throws and catches also," coach Jon Gruden said. "You have to tip your hat to them. We didn't get enough pressure. We let Mahomes move around back there, cock his arm. And when he gets an opportunity to do that he can drop them in there no matter where they are."

The breakdown came on the first touchdown when Demarcus Robinson sped through the secondary and was all alone for a 44-yard score on the first play in the second quarter.

Kansas City didn't slow down from there, scoring on two straight drives of more than 90 yards, with Mahomes finding rookie Mecole Hardman on a 42-yards strike and Travis Kelce on a 27-yarder that made it 21-10.

The Raiders then went three-and-out late in the half, setting the stage for the fourth TD on a 39-yard pass from Mahomes to Robinson, who thrived as the Oakland defense paid more attention to Kelce and Sammy Watkins with speedster Tyreek Hill out with an injury.

"He's got a great arm and they've got a lot of weapons. Up front, we have to get home," rookie defensive end Maxx Crosby said. "That's basically it. The back end can only hold up for so long. We just have to keep getting pressure. They had a second quarter where they started throwing the ball deep and they won some 50-50 balls. That's on us up front. We've got to get home."

The poor defensive quarter was even more costly because the offense stalled after scoring 10 points on the opening two drives. Derek Carr looked crisp early, leading the Raiders to a field goal and then throwing a 4-yard TD pass to Tyrell Williams on the second drive to make it 10-0.

The Raiders didn't score again, gaining two first downs on four drives during the Kansas City barrage, and then throwing two interceptions in the third quarter to end any comeback attempt.

"There was a time when we couldn't get a first down and they jumped up on us, and then that changes a whole bunch of stuff," Carr said.