Mahomes threw four scoring passes in Sunday night's 45-10 win over the Cincinnati Bengals at Arrowhead Stadium. That gives him 22 touchdown passes in the first eight games of his career, breaking the NFL record of 21 set by Kurt Warner.
"You think you're going to have success, but I didn't expect this much,'' Mahomes said. "But at the same time, I knew the weapons we had, and I knew if I just ran [the offense] and did what Coach [Andy] Reid wanted me to do that there was a chance we could be really, really good.''
Mahomes is closing in on the Chiefs' single-season record for touchdowns. Len Dawson threw 30 touchdown passes in 1964, and Mahomes has nine games to catch him.
"We have a lot of season left. ... We're going to try to get a couple more and keep doing what we're doing,'' Reid said.
Mahomes threw four touchdown passes this season in games against the Chargers and Patriots. He had six scoring throws in a game against the Steelers.
Mahomes, the Chiefs' first-round draft pick in 2017, said he has never had as much fun playing football as he's having this season.
"To be able to learn every day from Coach Reid, to be able to get out here with all these guys ... we literally have fun every single day,'' he said. "We love coming to work, I guess you would say, and just getting to play this game that we've loved since we were little kids and winning a lot of football games.''
Mahomes' 22nd touchdown pass came in the fourth quarter. Tyreek Hill caught the 3-yard throw.
Mahomes failed to throw a touchdown pass in two of his eight career games: last season against the Broncos and this season against the Jaguars.