Though there were a handful of close games, and two 2nd rd games still to play, the only team, that wasn't one of the top 4 seeds, to advance to the 3rd round in 2A (and most likely will be the only team) is Woodbury Central.
Woodbury Central defeated Maple Valley-Anthon-Oto 61-55, though it was not exactly an upset of any kind. Both only had 3 losses on the year coming in and the two split in the regular season.