But Tech's defense reopened that door, committing two errors on ground balls to put Bobby Boyd and Brady Wilson on base to lead off the bottom half.
The middle of WVU's lineup made the Raiders pay as a two-run single by Tuntland followed by an RBI single by Ryan McBroom pulled the Mountaineers within 4-3.
With two outs, Mazey chose to pinch-hit former Magnolia High School standout and Kennedy Award winner Justin Fox for catcher Alan Filauro, and Fox responded with a single up the middle to tie it at 4.
Mazey explained that Fox's big game-tying hit was much bigger than a tally on the scoreboard.
"It meant a lot to everybody in our dugout," Mazey said. "He had a death in his family and he wasn't even here last night. He got here right before the game, so for him to come here and do that, what he did for his family and his teammates, that was special."
But after a scoreless ninth inning, it was Barrios to the rescue again for Tech as the junior third baseman tripled to left with one out in the top of the 10th and scored the go-ahead run on a Mason Randolph single. Randolph eventually scored on a fielder's choice to account for the final run.
Billy Fleming had three hits and McBroom added a double, accounting for West Virginia's lone extra-base hit of the game.
Former Wheeling Park player Corey Walter delivered a strong starting effort from the mound, giving up three runs in seven innings on five hits and three walks while striking out six.
Former Nitro High School standout Matt Frazer struggled a bit on Saturday, recording just one single in his eight at-bats and reaching once on a walk.
The Mountaineers will play their next game at Easter Kentucky on Tuesday before hosting New Orleans in a four-game set in Morgantown beginning Thursday.
West Virginia's next game at Appalachian Power Park will be against Morehead State on April 16.
Reach Ryan Pritt at 304-348-7948, ryan.pr...@wvgazette.com, or follow him at twitter.com/RPritt.