i'm not certain, but i think the tiebreaker in that case would be their record against the top four teams. basically, whoever has the better combined record against IU, PU, MSU and WISC. and does the #1 seed always face the 6 vs. 11 winner, or do they reorder so they play lowest surviving seed? The 1 seed always faces the 8-9 winner (which right now would be Michigan/Iowa). 2 seed faces 7/10 winner (PSU/Illinois), 3 seed faces 6/11 winner. Tiebreaker after head-to-head is record vs. best teams in the conference. So, it would be record vs. Wisconsin, then Purdue, then IU, then MSU, and on down.