I'm a bit pressed for time, so my apologies for not getting more in depth into the stats and for not providing links to both schools, but here's what happened Sunday.
Iowa pounded Illinois, 17-3. Ohio State beat Indiana, 8-6. Purdue avoided a sweep by beating up Michigan, 10-5. Minnesota took the series finale from Michigan State, 6-3. Penn State crushed Northwestern, 15-5.
Northwestern and Michigan remain in a first place tie at 11-5 in the Big Ten. Ohio State is third at 9-7. The three way tie for fourth is between Purdue, Minnesota and Michigan State. All three are 8-8 in conference.
Penn State is next at 7-9 followed by Illinois at 6-9. Iowa is 6-10 in league play while Indiana is 5-11.