The victory came after OU won game two by a 5-3 count last night to even the series at a game apiece following a series-opening loss Friday night.
"The guys really came together this weekend," said OU head coach Sunny Golloway. "This is not an easy place to play at. We are glad to come out of here with a series win and head back to Norman. Our goal was to come in here and win the series and that's exactly what we did."
So, OU won the best-of-three the hard way, though in this one it wasn't really particularly hard at all.
The Sooners leaped out to an early 2-0 lead in the top of the second inning when catcher Dylan Neal singled home center fielder Max White--he reached earlier on an error--and later scored on left fielder Brian Brightwell's RBI single.
First baseman Hunter Lockwood made it 3-0 the following inning with the team's third big two-hit, an RBI single.
It became 4-0 in the top of the fifth on yet another weekend hit from second baseman Jack Mayfield, part of five base knocks in three days.
"Right now, arguably, Jack is our hottest bat and our biggest thumper," Golloway said.
Tech cut into the lead with two of its own in the bottom half, but it would get no closer.
OU added another on designated hitter Chase Simpson's RBI single to center in the seventh, at which point it was a 5-2 game.
The Sooners padded it with three more in the ninth to coast to victory.
Neal led the way with a pair of RBIs, two hits and a walk in three plate appearances, while Brightwell finished 2-for-3 with an RBI and run scored.
"They stepped up big this weekend," Golloway said. "Their play gives us a spark and a lot of depth. It also gives all of our guys that ‘You can get in here at any time and get hot' [mind set]."
The Sooners return home for a four-game homestand starting with in-state rival Oral Roberts at 6:30 p.m. Tuesday.
It marks the first regular season meeting between the Sooners and the Golden Eagles since 2004 (met in NCAA tournament in 2010 and 2011).
OU then welcomes Kansas State for a Big 12 series starting on Friday at 6:30 p.m. Saturday is set for 2 p.m. and the finale on Sunday is slated for a 1 p.m. first pitch.