Kareem Hunt rushed for two touchdowns in the first half on Sunday and the Kansas City Chiefs stayed unbeaten with a 28-18 victory over the San Francisco 49ers in Santa Clara, Calif. Patrick Mahomes completed 16 of 27 passes for 154 yards with two interceptions for Kansas City (6-0) in a rematch of last season's Super Bowl, won by the Chiefs. He also ripped off a career-high 33-yard run to set up a key fourth-quarter touchdown. The Chiefs outrushed San Francisco 184-101 and possessed the ball for more than 35 minutes. Brock Purdy hit on 17 of 31 passes for 212 yards but tossed three interceptions, two of them ending potential scoring drives in the second half.