Key PPG = Average of points scored per game; team with highest average in bold PAG = Average of points allowed per game; team with lowest average in bold
Regular season
September 25
On September 25, 1920, only one Big Ten team saw action.
On October 2, 1920, the Big Ten football teams participated in one conference game and five non-conference games. The non-conference games all resulted in victories, giving the Big Ten a 6–0 non-conference record to that point in the season. Chicago, Illinois, and Michigan had bye weeks.
On October 9, 1920, the Big Ten teams participated in two conference games and six non-conference games. The non-conference games resulted in six victories, giving the Big Ten a 12–0 non-conference record to that point in the season.
On October 16, 1920, the Big Ten teams participated in four conference games and two non-conference games. The non-conference games resulted in two victories, giving the Big Ten a 14–0 non-conference record to that point in the season.
Ohio State 17, Purdue 0
Wisconsin 27, Northwestern 7
Minnesota 21, Indiana 7
Illinois 20, Iowa 3
Michigan 35, Michigan Agricultural 0
Chicago 41, Wabash 0
October 23
On October 23, 1920, the Big Ten teams participated in four conference games. Northwestern and Purdue had bye weeks.
On October 30, 1920, the Big Ten teams participated in three conference games and two non-conference games. The non-conference games resulted in two victories, giving the Big Ten a 16–0 non-conference record to that point in the season. Iowa and Wisconsin had bye weeks.
On November 6, 1920, the Big Ten teams participated in four conference games and one non-conference game. The non-conference game resulted in a loss to Notre Dame, giving the Big Ten a 16–1 non-conference record to that point in the season. Indiana had a bye week.
On November 13, 1920, the Big Ten teams participated in four conference games and one non-conference game. The non-conference game resulted in a second loss to Notre Dame, giving the Big Ten a 16–2 non-conference record to that point in the season. Ohio State had a bye week.
On November 20, 1920, the Big Ten teams participated in four conference games and two non-conference games. The non-conference games resulted in a win and a loss, giving the Big Ten a 17–3 non-conference record for the regular season. All three losses were against Notre Dame.
Ohio State 7, Illinois 0
Wisconsin 3, Chicago 0
Indiana 10, Purdue 7
Michigan 3, Minnesota 0
Iowa 14, Iowa State 10
Notre Dame 33, Northwestern 7
Bowl games
On January 1, 1921, at Tournament Park in Pasadena, California, Ohio State lost to national champion California by a 28–0 score. California remained undefeated from 1920 until 1924.
Awards and honors
All-Big Ten players
The following players were selected as first-team players on the 1920 All-Big Ten Conference football team by E. C. Patterson for Collier's Weekly, Malcolm McLean, or Walter Eckersall of the Chicago Tribune. It also includes players listed as members of the 1920 "All-Conference Team" as published in the "ESPN Big Ten Football Encyclopedia".