Mahomes Rallies Chiefs Past Raiders 30-27 in Las Vegas; KC Stays Perfect at 4-0

Patrick Mahomes engineered a comeback win as the Kansas City Chiefs handed the Las Vegas Raiders their first loss of the season, 30-27, on Sunday in Las Vegas.

The Raiders entered unbeaten but could not hold off the two-time MVP, who rallied Kansas City to keep the Chiefs perfect at 4-0 after Week 4. Kansas City joins San Francisco and Minnesota as the league's last three unbeaten teams.

The Chiefs now stand alone as the AFC's final unbeaten squad after a dramatic Sunday around the league. The New England Patriots handed Buffalo its first defeat 29-26, while the Minnesota Vikings ground out a 15-10 victory over Miami without finding the end zone, kicking five field goals instead.

Elsewhere, the Los Angeles Rams erased a deficit to beat the Philadelphia Eagles 24-20, adding to a week full of tight finishes.

For the Chiefs, the win reinforced their familiar formula: Mahomes delivering when it matters most. For the Raiders, a first loss stings but the season is far from derailed — the rematch later in the year suddenly looms larger, and the division race remains wide open with Kansas City setting the early pace.