Seattle's defence held Kansas City to 213 yards and kept Patrick Mahomes out of the red zone entirely as the Seahawks beat the Chiefs 20-3 at Lumen Field, handing the visitors a second defeat and ending their unbeaten start in emphatic fashion.
The Seattle Seahawks beat the Kansas City Chiefs 20-3 at Lumen Field on Sunday night, turning a showcase game into a defensive rout and handing the visitors their first defeat in a season that had begun with six straight wins.
Seattle led 10-0 at half-time and never let Kansas City back into the game. Sam Darnold finished 20 of 28 for 257 yards with a touchdown and an interception, while Jaxon Smith-Njigba caught nine passes for 150 yards and a score, and Emanuel Wilson sealed the win with a 21-yard touchdown run in the fourth quarter.
The numbers on the other side were stark. Patrick Mahomes completed 19 of 33 passes for 165 yards with one interception and a 58.3 passer rating, Kansas City managed 11 first downs and 213 yards, and the Chiefs never reached the red zone in a Mahomes start for the first time in his career, including the postseason. Harrison Butker missed field goals from 58 and 45 yards, the second with 8 minutes 33 seconds left and Seattle ahead by seven.
NBC Sports and the official box score agree on the 20-3 final and the quarter-by-quarter shape of the game, and the yardage and passer-rating figures are consistent across the game reports. The claim that this was the first Mahomes start without a red-zone trip comes from the NBC broadcast itself, and it is presented here as the broadcast's observation rather than a league record-book entry.
For Seattle, the win is a statement about a defence that has carried the team into contention: it held a high-scoring opponent to a single field goal, controlled third down at 11 of 16, and finished with 410 yards of its own offence. For Kansas City, the defeat exposes an offence that has leaned heavily on Mahomes, with former Seahawk Kenneth Walker held to 36 yards on 14 carries in his return to Seattle.
Seattle stays at home for another prime-time game, against the Chicago Bears on Monday Night Football on November 2, while Kansas City must regroup quickly after a performance that left its unbeaten record and its aura of inevitability dented in the same night.