After rallying from a three-run deficit in the ninth inning, Oregon State upended Florida State 5-4 on AJ Singer’s walk-off RBI single in the 10th inning in the opener of the Corvallis Super Regional on Friday night.

With the bases loaded and no outs in the bottom of the 10th, Florida State got a forceout at the plate before Singer stepped up and delivered a single to center, scoring Gavin Turley as the hosts won the opener of the best-of-three series.

Down to their last strike in the ninth, OSU (46-13-1) got one run back on a wild pitch that scored Wilson Weber. Jacob Krieg followed with a two-run single to tie the game at 4.

Saint Louis alumnus Aiva Arquette got the rally started in the 10th with a leadoff double. Turley reached on an infield single, with Arquette advancing to third.

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