Before the Week 18 game between the Kansas City Chiefs and Denver Broncos, most of the contributors on our Arrowhead Pride panel picked the Broncos to win — but some did not. So our composite prediction was for a 20-18 Denver victory. That had a whopping 72 points of error from the 38-0 final: it missed the point spread by 36 points, the Broncos’ score by 18 and the Chiefs’ score by 18. By a narrow margin, our readers also expected a Denver win — but just 3% thought it would be a blowout.