One of the weird recent streaks in sports betting was the Kansas City Chiefs failing week after week to cover a spread.
From Nov. 1, 2020, to Nov. 7 of this year, the Chiefs were 3-16-1 against the spread over a 20-game stretch that includes the postseason. It's not like the Chiefs were that bad. They just weren't covering.
On one hand it made sense. Oddsmakers lost so often during the first part of the Patrick Mahomes era that all Chiefs lines were inflated. On the other, the Chiefs losing for bettors every week was strange.