Pinder also had a solo home run in the fourth for the sixth-seeded Hokies (38-19), who went 3-0 in Pool B to clinch a reach the title game.
Alex Perez also drove in a run for the Hokies.
Starting pitcher Devin Burke (10-3) allowed two runs — one earned — and seven hits in 7 2-3 innings. Clark Labitan earned his 10th save.
Sam Dove and Matt Gonzalez each had two hits for the seventh-seeded Yellow Jackets (34-25). Jonathan King (6-5) took the loss after allowing nine hits in 6 1-3 innings.
Georgia Tech upset second-seeded Florida State in its tournament opener but finished 1-2 in Pool B.