All Big Ten schools play in the tournament. Teams are seeded by conference record, with a tiebreaker system used to seed teams with identical conference records.
Iowa over Illinois for #2 seed: Iowa and Illinois each won one of the two games played head-to-head, Iowa wins tiebreaker by virtue of a better record against regular season champion Ohio State. (Iowa vs Ohio State, 1–0; Illinois vs Ohio State, 0–1)
Wisconsin over Indiana for #4 seed: Wisconsin wins tiebreaker by winning only head-to-head game played.
Michigan State over Michigan for #6 seed: Michigan State and Michigan each won one of the two games played head-to-head, Michigan State wins tiebreaker by virtue of a better record against regular season champion Ohio State (Michigan State vs Ohio State, 1–1; Michigan vs Ohio State, 0–2)
Penn State over Northwestern for the #8 seed: Penn State wins tiebreaker by winning both head-to-head games played.
Michigan State plays in the opening round for the first time. In the eight prior tournaments, Michigan......