I'll throw out some predictions on this thing. I also will go with what you said and assume that pitchers will not be throwing on 2 days rest no matter what (i.e. #1's cannot come back until championship).
1st Round
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North Central over Wash U.....North Central throws out one of the better 1-2 punches in the region. I would assume they would throw Kloss in this one so he'd be able to come back for the championship. Don't know much about Wash U. But I would assume they wouldn't be able to hold back that dangerous North Central lineup that finds a way to win.
Coe over Greenville......despite Coe's struggles this year, they (I think no doubt) have the best 1-2 in the IIAC, if not the region. If I were Coach Cook, I would throw out Cody Raisch in this one. Raisch has struggled to win games this year, but will find a way to keep Greenville under 3. Coe battles to score 5 runs and win.
Webster over Central.....I don't know a lot about Webster, but will take them (despite their easy schedule). Central has one a lot of games this year, but doesn't have much of a pitching rotation, despite what the numbers might suggest. Central's lineup vs. a #1 pitcher isn't all that scary of a lineup either.
Carthage over Grinnell........is this a serious matchup?
Beloit over Augustana.......Augustana continues to do all they can to wreck their great start and not make the CCIW tournament. They are coming off of a sweep by Carthage. Hotter of the two teams prevails here. Beloit's won 9 of last 11, good enough for me.
Wartburg over North Park.....Wartburg would likely throw out Watson here, that'll do.
Buena Vista over Fontbonne.....This is a very scary first round for BV. Fontbonne has a nice lineup with a lot of pop. Just judging from how highly BV is thought by everyone and their nice upper classmen, I will take them. Looking at the numbers, Probasco looks like a legit #1 as well.
St. Norbert over Wheaton......coin flip, heads it was, so I went with St. Norbert
2nd Round Matchups
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North Central Vs. Coe
Webster Vs. Carthage
Beloit Vs. Wartburg
Buena Vista Vs. St. Norbert