The Bears and Spartans records include the result of the 1932 NFL Playoff Game. Thus, the Spartans are ranked third with a lower winning percentage than the Packers.
PRT 0
CHI 9
Champ
CHI
1932 NFL Champion Chicago Bears
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot

NFL Playoff Game

Because of snowfall and anticipated extremely cold temperatures in Chicago, Illinois, the game was moved indoors and played at the three-year-old Chicago Stadium on a reduced-size 80-yard field.
Date    OpponentResultScore
12/18at Chi. BearsL  0-9