Yes, and then potentially two games on Saturday.
Iowa's pitching staff isn't deep enough to handle back-to-back doubleheaders.
Frankly, for Iowa to have a realistic chance of making and/or winning on Sunday, I think that they need to run the table. Baumann would start against Nebraska tonight (or Friday). Then Iowa can pitch Judkins on Saturday. Even in that situation, Iowa has to hope that its Sunday opponent has burned through a lot of pitching to scratch its way to a Sunday game. And, quite frankly, it wouldn't hurt if the opponent was all but guaranteed an NCAA bid so the team wouldn't be tempted to squeeze a few innings from each of the pitchers at the top of the rotation.