Looking at tonight's games:
14-4 Illinois at 13-1 Michigan, 7pm, ESPN:
Michigan is probably going to win the B1G Regular Season Title regardless (because all they need is one win in their last three games OR one Illinois loss in Illinois' last two games) but they can end the suspense with a win tonight.
If Michigan wins:
The Wolverines clinch the title and the #1 seed in the BTT while the #2 seed stays in range for Iowa and Purdue. Either the Hawkeyes or Boilermakers would still need to win out and for tOSU to beat Illinois this weekend but at least it would still be possible.
If Illinois wins:
The Illini clinch at least the #2 seed in the BTT and remain at least mathematically alive for the Regular Season Title although they would still need to win in Columbus and for the Spartans to sweep the Wolverines.
7-10 Indiana at 7-10 Michigan State, 8pm BTN:
Indiana can't get to .500 in the league because they are only going to play 19 games but if they win this they can at least get within a half a game (by also beating Purdue). If they lose this their NCAA chances go nearly on life support. Michigan State can get to .500 in the league but only if they win this then sweep the Wolverines so this game is pretty important for them as well. Furthermore, Lunardi currently lists the Spartans and Hoosiers as the first and third teams out so the winner probably moves in (at least temporarily) while the loser will obviously have work to do.
10-8 Wisconsin at 11-6 Purdue, 9pm, ESPN2:
Both teams look to be safely in the tournament so this game is all about seeding. Wisconsin has lost three of their last four, and hasn't had a quality win since winning at Maryland over a month ago. Purdue has won three straight and four of five since suffering a heartbreaking 1-point loss at Maryland a month ago today. They finish the season with a home game against their arch-rivals on Saturday so finishing on a five-game winning streak is looking more and more likely.