I think DoubleNicks is right. They go by head to head record between the teams. This is from 2014, which would be the same as the scenario described:Nicks, I'm not certain that's accurate. Since it would be a circular tie, the next step would be to compare "common conference opponents". This is yet another one of those instances in which the bsc sucks, because those 3 teams haven't played all common opponents. And none of the 3 teams would have a loss against a team the other two beat. So the third tie break is Sagarin ratings.
Sooooo bsc. #bsc.
In this instance, Davis would in the tiebreaker.In the event of the three-way tie, the head-to-head criteria would again be used first. The automatic bid will be awarded to the team with the best record against the other tied teams, regardless if all have played each other.
If Northern Arizona, Montana State and Eastern Washington tie for first, Northern Arizona would win the tiebreaker based on its 1-0 record against the other schools as it beat Eastern Washington. Eastern Washington went 1-1 against NAU and MSU, while MSU was 0-1.