This past weekend included a Friday the 13th and, coincidence or not, several of the nation's highest-ranked teams were cursed. It was a weekend of upsets, to be sure, some more shocking, some more mild.
Kennesaw State, a Division I program for less than a decade, scored three runs in the bottom of the seventh to edge No. 5/6 Kentucky, 9-8. According to the linked article, "Kentucky represented the highest ranked opponent Kennesaw State has defeated since moving up from Division II [in 2006]."
Unranked Stanford beat No. 3/4 Alabama 4-1 on Saturday. The Crimson Tide had knocked off the Cardinal a day earlier in the same tournament.
No. 21 Arizona State defeated No. 4/3 Oklahoma on Sunday, 8-4 on a walk-off Grand Slam. The day before, the Sooners had prevailed over the Sun Devils.
Finally, in a rematch of last year's super-regionals, No. 8/7 Michigan swept a doubleheader from No. 6/5 Florida State.