The First Class league system has six-team divisions organised in a pyramid structure.

With the addition of Nebraska into the Big Ten, the conference split into two six-team divisions.

A divisional structure involving two six-team divisions competing for two championship-game slots would not be possible.

At the time, the conference split into two six-team divisions and created a conference championship game.

Moving to 12 teams would also allow the A.C.C. to divide into two six-team divisions and play a lucrative championship game.

The league has two six-team divisions, stretching from Virginia to Michigan.

With twelve teams, the league was realigned into a two six-team divisions.

The present alignment was created in 1969, when the league changed from a single 10-team format to two six-team divisions.

The league became geographically incorrect in 1969 when it changed to the two six-team divisions.

Both of the leagues within the Senior League are broken down into two six-team divisions.