Following Sunday's triumph, the head coach strutted into the locker room dressed as Santa Claus. He also wore the festive garment to his postgame press conference.
Three weeks ago, the Chiefs were on the brink of an epic collapse. They squandered a 5-0 start by losing six of their next seven games.
With the division title suddenly in jeopardy, Kansas City rebounded to win their last three contests. Gifted more touches by Reid, rookie running back Kareem Hunt has registered 450 total yards and four touchdowns during the winning streak.
Kansas City will enter the playoffs as the AFC's No. 4 seed.