The second-seeded Gamecocks (34-24) trailed 2-0 before the big inning, which included Danny Blair’s three-run homer. Justin Row followed with a two-run single in the six-hit inning that pushed South Carolina to a 5-2 lead.
The Gamecocks added three runs in the eighth and finished with 14 hits.
Eddy Demurias (7-0) earned the win, allowing four hits and a run in three innings.
Dillon Dingler hit a solo homer and drove in two runs for the third-seeded Buckeyes (36-23), who had nine hits.
Seth Kinker (6-2) took the loss, allowing five runs and six hits in an inning.
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