Three Treasure Valley teams opened the Idaho high school baseball state tournament with victories Thursday.

Mountain View upset No. 1-seeded Owyhee, and Middleton pulled out a win on a head-first slide at first base to set up an all-SIC semifinal round in the 6A tournament. And at the 3A level, perennial power Nampa Christian took down a conference rival to stay in the winners’ bracket.

Get caught up on everything from the first day of the new double-elimination tournaments below.

IDAHO 6A BASEBALL STATE TOURNAMENT

[Related: 6A baseball state playoff scores, brackets ]

MOUNTAIN VIEW 9, OWYHEE 1: Five days ago, Mountain View stood three outs from elimination. Now the Mavericks are one win away from playing for a state title.

Fourth-seeded Mountain View (22-10) erupted for five run

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