Carolina staked Gallen to an early 5-0 lead with some timely hitting and help from the Terrapin defense. After Landon Lassiter walked to open the game and Wood Myers singled, Bolt drove in both with a two-out looping liner. The Tar Heels added three more against Maryland starter Kevin Mooney (0-1) after the closer-turned-starter couldn't handle Myers' bleeder back to the mound in the second.
Lassiter and Joe Dudek drew consecutive two-out walks before Mooney's error extended the inning and loaded the bases. Russell then lined to center to score a pair, and Myers scored when LaMonte Wade's throw to second sailed into left.
Maryland (11-6, 2-4 ACC) scratched out its first run of the day in the fourth before adding two more in the sixth to chase Gallen.
Krysthian Leal reached to open the sixth when Gallen couldn't handle Joe Dudek's throw when covering first. Charlie White then doubled and Wade drove in a pair to make it 5-3. Gallen got Kevin Martir swinging for the second out of the sixth before Zach Rice came on to face the left-handed hitting Anthony Papio. But Rice walked Papio on five pitches, and Reilly Hovis was called on to face Blake Schmit. Hovis, who has not allowed a run in 11 appearances since giving up three on opening day, got Schmit to fly out to end the threat.
After a one-out walk to Mike Rescigno in the seventh, Carolina called on closer Chris McCue for an eight-out save opportunity. McCue did not have his best stuff on a chilly afternoon in College Park, but he pitched around trouble in each of the final three innings to secure the win. Maryland's best chance to tie came in the eighth, when three straight singles made it 5-4 and a sacrifice put two runners in scoring position with one out. But McCue got Andrew Amaro swinging for the second out and Rescigno flew out to right to end the inning.
Carolina then broke it open with four runs in the top of the ninth. Russell started the outburst with a one-out triple and scored when Bolt's grounder to third was misplayed by Rescigno. Parks Jordan then drove in a second run with a perfectly executed safety squeeze before Korey Dunbar's two-run double made it 9-4.
McCue put two on in the ninth but struck out Martir to end it and give UNC its first road series win of 2014.
Gallen went 5.2 innings and allowed two earned runs on seven hits in winning for the second time in five starts. The Gibbsboro, N.J., freshman has gone at least 5.2 innings in all five starts and has limited opponents to four runs or less each time.
The Tar Heels will now return home for a five-game homestand that opens Tuesday, March 16, at 6 p.m. against Princeton. Tickets are available at the Boshamer box office and online at GoHeels.com.