2026 NCAA baseball tournament winners, losers: UCLA collapses, No. 4 seeds rewrite history in regionals

The 2026 NCAA baseball tournament regionals produced historic results, highlighted by UCLA's collapse and an unprecedented performance by No. 4 seeds, who rewrote record books in the opening round. The tournament's first round featured multiple 'firsts,' with lower-seeded teams pulling off upsets against higher-ranked programs. The results marked a historically unusual outcome in regional play, with No. 4 seeds advancing at a record-breaking rate.